#31231C
Closest named color: Jet (#212529). oklch(27.1% 0.025 47.8), rgb(49, 35, 28).
Aa
White text reads best on this color (15.13:1).
About this color
#31231C is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.035 away. White text reads best on it, at 15.13:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.38:1 |
| White text | 15.13:1 |
Values
| HEX | #31231C |
| RGB | rgb(49, 35, 28) |
| HSL | hsl(20, 27%, 15%) |
| OKLCH | oklch(27.1% 0.025 47.8) |
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 #31231C | 15.13:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #31231C | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #31231C text on white | 15.13:1 | AAA | Lc 102.0 | Preferred for body text |
| #31231C text on black | 1.38:1 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E5
oklch(93.6% 0.009 44.9)
-
Step 200
200
#E3D6D0
oklch(88.5% 0.017 46.6)
-
Step 300
300
#D2BBB1
oklch(80.9% 0.03 45)
-
Step 400
400
#BA9887
oklch(70.6% 0.048 48)
-
Step 500
500
#A97F6A
oklch(63.2% 0.061 47.7)
-
Step 600
600
#946851
oklch(55.7% 0.066 48.5)
-
Step 700
700
#7E5642
oklch(49.1% 0.062 47.4)
-
Step 800
800
#664737
oklch(42.8% 0.05 48.3)
-
Step 900
900
#533B2F
oklch(37.6% 0.04 47.6)
-
Step 950
950 (this color)
#31231C
oklch(27.1% 0.025 47.8)
#31231C 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) | #27241C | 0.020 |
| Deuteranopia (no green cones) | #2A271C | 0.019 |
| Tritanopia (no blue cones) | #352121 | 0.015 |
| Achromatopsia (no color) | #262626 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31231C
#31231C
oklch(27.1% 0.025 47.8)
- #192930
#192930
oklch(27% 0.025 227.2)
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 #31231C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.035
- Dark Brown #341C02 ΔE 0.035
- Chocolate Brown #411900 ΔE 0.047
- Dark #1B2431 ΔE 0.053
- Oxford Blue #1B263B ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.066
- Pakistan Green #283618 ΔE 0.069
- Gunmetal #293241 ΔE 0.069
Use #31231C 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.