#231D10
Closest named color: Dark Brown (#341C02). oklch(23.4% 0.025 85.8), rgb(35, 29, 16).
Aa
White text reads best on this color (16.73:1).
About this color
#231D10 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.038 away. White text reads best on it, at 16.73:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.25:1 |
| White text | 16.73:1 |
Values
| HEX | #231D10 |
| RGB | rgb(35, 29, 16) |
| HSL | hsl(41, 37%, 10%) |
| OKLCH | oklch(23.4% 0.025 85.8) |
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 #231D10 | 16.73:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #231D10 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #231D10 text on white | 16.73:1 | AAA | Lc 103.7 | Preferred for body text |
| #231D10 text on black | 1.25:1 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECE9E4
oklch(93.5% 0.007 80.7)
-
Step 200
200
#DED9CD
oklch(88.6% 0.017 88)
-
Step 300
300
#C9C0AC
oklch(81% 0.029 86.7)
-
Step 400
400
#AE9F80
oklch(70.7% 0.046 85.2)
-
Step 500
500
#9A875F
oklch(63.1% 0.06 85.3)
-
Step 600
600
#847146
oklch(55.6% 0.065 86.5)
-
Step 700
700
#705E37
oklch(49% 0.06 85.5)
-
Step 800
800
#5B4D2E
oklch(42.6% 0.05 86)
-
Step 900
900
#4B4029
oklch(37.7% 0.039 85.1)
-
Step 950
950 (this color)
#231D10
oklch(23.4% 0.025 85.8)
#231D10 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) | #201D0F | 0.006 |
| Deuteranopia (no green cones) | #211E10 | 0.005 |
| Tritanopia (no blue cones) | #261B1A | 0.022 |
| Achromatopsia (no color) | #1E1E1E | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231D10
#231D10
oklch(23.4% 0.025 85.8)
- #181E2A
#181E2A
oklch(23.5% 0.025 263.9)
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 #231D10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.038
- Jet #212529 ΔE 0.044
- Dark #1B2431 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.062
- Chocolate Brown #411900 ΔE 0.065
- Oxford Blue #1B263B ΔE 0.076
- Dark Forest Green #002D04 ΔE 0.077
- Very Dark Green #062E03 ΔE 0.077
Use #231D10 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.