OpenAI Dark Color Psychology & Meaning
ChatGPT's dark interface with green accents creates a terminal-like feel — this is serious computation happening. The green echoes classic computing screens and suggests active intelligence.
#202123
#19C37D
#FFFFFF
#8E8EA0
Background
Primary Accent
Secondary
Body Text
OpenAI Dark Color Palette
#202123 · #19C37D · #FFFFFF · #8E8EA0
AA
WCAG Grade
5.0:1
Contrast Ratio
5,600
Saves
16,000
AI Copies
Use #202123 as the background. Use #19C37D as the primary accent. Use #FFFFFF as secondary. Use #8E8EA0 as body text/supporting color. Palette mood: OpenAI Dark — dark, minimal, tech.
Hex Codes, RGB & CMYK Color Values
Technical breakdown for the OpenAI Dark color scheme. Use these values for web design (HEX/RGB), print projects (CMYK), or specialized design software (HSL).
| Swatch | Design Role | HEX | RGB | CMYK | HSL |
|---|---|---|---|---|---|
| Background Luminance: 1.5% | 32, 33, 35 | 9%, 6%, 0%, 86% | 220°, 4%, 13% | ||
| Primary Accent Luminance: 40.7% | 25, 195, 125 | 87%, 0%, 36%, 24% | 155°, 77%, 43% | ||
| Secondary Luminance: 100.0% | 255, 255, 255 | 0%, 0%, 0%, 0% | 0°, 0%, 100% | ||
| Body Text Luminance: 27.6% | 142, 142, 160 | 11%, 11%, 0%, 37% | 240°, 9%, 59% |
OpenAI Dark Tints & Shades
Hover states, borders and elevation need lighter and darker steps of your base colors. Here are computed tints and shades for every color in the OpenAI Dark palette — click any swatch to copy its hex.
#202123 neutral gray
#19C37D saturated teal
#FFFFFF neutral gray
#8E8EA0 muted blue
OpenAI Dark Palette Contrast Matrix (WCAG 2.1)
Every color tested as text on every other color as background. Body copy needs 4.5:1 (AA), large text and UI components 3:1. AAA requires 7:1.
| Text on Background | Preview | Ratio | Grade | Safe For |
|---|---|---|---|---|
| #FFFFFF on #202123 |
Aa Sample Text
| 16.11:1 | AAA | Body text, headings, UI |
| #202123 on #FFFFFF |
Aa Sample Text
| 16.11:1 | AAA | Body text, headings, UI |
| #19C37D on #202123 |
Aa Sample Text
| 7.02:1 | AAA | Body text, headings, UI |
| #202123 on #19C37D |
Aa Sample Text
| 7.02:1 | AAA | Body text, headings, UI |
| #8E8EA0 on #202123 |
Aa Sample Text
| 5.01:1 | AA | Body text, UI |
| #202123 on #8E8EA0 |
Aa Sample Text
| 5.01:1 | AA | Body text, UI |
| #8E8EA0 on #FFFFFF |
Aa Sample Text
| 3.22:1 | Fail | Large headings, UI components |
| #FFFFFF on #8E8EA0 |
Aa Sample Text
| 3.22:1 | Fail | Large headings, UI components |
| #FFFFFF on #19C37D |
Aa Sample Text
| 2.30:1 | Fail | Decorative use only |
| #19C37D on #FFFFFF |
Aa Sample Text
| 2.30:1 | Fail | Decorative use only |
| #8E8EA0 on #19C37D |
Aa Sample Text
| 1.40:1 | Fail | Decorative use only |
| #19C37D on #8E8EA0 |
Aa Sample Text
| 1.40:1 | Fail | Decorative use only |
Color Harmony: Triadic Scheme
The OpenAI Dark palette is built using a triadic relationship between its hues. This ensures that even with high-contrast accents, the overall scheme feels balanced and intentional.
Hue Wheel
A triadic palette is often preferred by professional designers because it balances visual interest with cohesion.
History & Design Context
OpenAI launched ChatGPT in late 2022 with a dark interface that signaled capability over friendliness. The green accent was chosen to feel like an active cursor or blinking light.
Best Design Use Cases
Dark gray for the sidebar and conversation chrome. White for chat bubbles and content. Green for the send button and active states only. Restrained — this is functional.
Industries This Palette Suits
AI tools, developer APIs, enterprise AI, productivity.
Colors That Pair Well With OpenAI Dark
Need a fifth color? These three companions are computed from the palette's own hue positions on the color wheel, so they extend the scheme without breaking its harmony.
rose-red
directly opposite #19C37D on the wheel — the strongest accent for CTAs and highlights when you need maximum energy
teal
30° beside #19C37D — a calm secondary that extends the palette without adding tension
tinted neutral
a paper-white carrying the palette's own hue — perfect for surfaces and dividers
Using OpenAI Dark Without Breaking Accessibility
- Use #19C37D for buttons and links — it scores 7.0:1 against the #202123 background (above the 3:1 UI-components threshold).
- Set body text in #8E8EA0 — 5.0:1 against #202123 passes WCAG AA (AA) for long-form reading.
- Don't use #FFFFFF behind body text — this light tone works better for surfaces, badges and dividers than for reading areas.
How to Implement the OpenAI Dark Color Scheme
To use this OpenAI Dark color palette in your web project, you can copy the following CSS variables or Tailwind CSS configuration. These roles ensure your UI maintains accessibility and visual hierarchy.
Option 1: CSS Variables
:root {
/* {name} Palette - ihatecolors.com */{'
'} --color-bg: {colors[0]};{'
'} --color-primary: {colors[1]};{'
'} --color-secondary: {colors[2]};{'
'} --color-text: {colors[3]};{'
'} {'}'}Web Design Tip
Use #202123 for the main background and #19C37D for primary buttons. This creates a high-contrast focal point.
Accessibility Note
The contrast ratio between #8E8EA0 and #202123 is 5.01:1 (AA). Ensure your body text remains legible.
OpenAI Dark Palette — Frequently Asked Questions
What are the hex codes in the OpenAI Dark color palette?
The OpenAI Dark palette contains #202123, #19C37D, #FFFFFF, #8E8EA0. Click any swatch on this page to copy its value, or export all four at once as CSS variables, Tailwind config, SCSS or a Figma-ready list.
Is the OpenAI Dark color palette accessible (WCAG)?
Yes for its strongest pairings: #FFFFFF on #202123 reaches 16.1:1 (AAA). For body text always keep a 4.5:1 ratio and for large UI elements 3:1 — the full contrast matrix above shows the exact score for every color-on-color combination in this palette.
What colors go well with the OpenAI Dark palette?
Beyond its own four colors, #C21960, #24ABB7, #ECEDEE extend it naturally: the complementary hue for high-energy accents, an analogous neighbor for calm transitions, and a tinted neutral for surfaces. All three are computed from this palette's hues on the color wheel.
What mood does the OpenAI Dark palette create?
OpenAI Dark reads as dark, minimal, tech. Saturated teal drives the personality, grounded by neutral gray — a combination that works best when the deep base gets most of the canvas.
Can I use the OpenAI Dark color palette commercially?
Yes. Individual color values can't be copyrighted, so the OpenAI Dark palette is free for personal, client and commercial work — websites, branding, apps, print and social content, with no attribution required.
How do I add the OpenAI Dark palette to Tailwind or CSS?
Use the export panel on this page: CSS variables, a Tailwind config block, SCSS variables, or a Figma copy list are generated from OpenAI Dark's exact values, including the tint and shade ramps shown above.