#20231B
Closest named color: Jet (#212529). oklch(25% 0.015 124.2), rgb(32, 35, 27).
Aa
White text reads best on this color (15.93:1).
About this color
#20231B is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.025 away. White text reads best on it, at 15.93:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.31:1 |
| White text | 15.93:1 |
Values
| HEX | #20231B |
| RGB | rgb(32, 35, 27) |
| HSL | hsl(83, 13%, 12%) |
| OKLCH | oklch(25% 0.015 124.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #20231B | 15.93:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #20231B | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #20231B text on white | 15.93:1 | AAA | Lc 102.9 | Preferred for body text |
| #20231B text on black | 1.31:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EAE7
oklch(93.5% 0.004 121.6)
-
Step 200
200
#D7DAD3
oklch(88.4% 0.01 125.7)
-
Step 300
300
#BEC3B6
oklch(81% 0.019 124)
-
Step 400
400
#9CA490
oklch(70.7% 0.03 125)
-
Step 500
500
#848E75
oklch(63.1% 0.038 125.2)
-
Step 600
600
#6E785E
oklch(55.7% 0.041 124.8)
-
Step 700
700
#5C654D
oklch(49.2% 0.039 124.5)
-
Step 800
800
#4B523F
oklch(42.6% 0.032 124.2)
-
Step 900
900
#3F4436
oklch(37.7% 0.024 123.5)
-
Step 950
950 (this color)
#20231B
oklch(25% 0.015 124.2)
#20231B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #24221B | 0.008 |
| Deuteranopia (no green cones) | #24221B | 0.008 |
| Tritanopia (no blue cones) | #212221 | 0.013 |
| Achromatopsia (no color) | #222222 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20231B
#20231B
oklch(25% 0.015 124.2)
- #232028
#232028
oklch(25% 0.016 302.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #20231B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.025
- Dark #1B2431 ΔE 0.041
- Dark Brown #341C02 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.057
- Oxford Blue #1B263B ΔE 0.058
- Very Dark Green #062E03 ΔE 0.069
- Dark Forest Green #002D04 ΔE 0.069
- Pakistan Green #283618 ΔE 0.072
Use #20231B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.