#232131
Closest named color: Dark (#1B2431). oklch(25.7% 0.03 289.9), rgb(35, 33, 49).
Aa
White text reads best on this color (15.74:1).
About this color
#232131 is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.016 away. White text reads best on it, at 15.74:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.33:1 |
| White text | 15.74:1 |
Values
| HEX | #232131 |
| RGB | rgb(35, 33, 49) |
| HSL | hsl(248, 20%, 16%) |
| OKLCH | oklch(25.7% 0.03 289.9) |
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 #232131 | 15.74:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #232131 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #232131 text on white | 15.74:1 | AAA | Lc 102.7 | Preferred for body text |
| #232131 text on black | 1.33:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9F0
oklch(93.6% 0.009 286.2)
-
Step 200
200
#D8D7E6
oklch(88.4% 0.02 289)
-
Step 300
300
#C0BDD7
oklch(80.9% 0.036 290.9)
-
Step 400
400
#9F9BC2
oklch(70.6% 0.057 289.6)
-
Step 500
500
#8882B3
oklch(63% 0.073 289.7)
-
Step 600
600
#726B9E
oklch(55.5% 0.078 289.9)
-
Step 700
700
#605988
oklch(49% 0.075 290.2)
-
Step 800
800
#4E496E
oklch(42.6% 0.061 289.8)
-
Step 900
900
#413D59
oklch(37.6% 0.048 290.5)
-
Step 950
950 (this color)
#232131
oklch(25.7% 0.03 289.9)
#232131 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) | #1D2332 | 0.012 |
| Deuteranopia (no green cones) | #1D2231 | 0.011 |
| Tritanopia (no blue cones) | #202427 | 0.025 |
| Achromatopsia (no color) | #232323 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #232131
#232131
oklch(25.7% 0.03 289.9)
- #242513
#242513
oklch(25.8% 0.031 111.1)
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 #232131, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.016
- Oxford Blue #1B263B ΔE 0.024
- Jet #212529 ΔE 0.024
- Rich Black #0D1B2A ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.048
- Gunmetal #293241 ΔE 0.060
- Eggplant #380835 ΔE 0.076
- Dark Brown #341C02 ΔE 0.078
Use #232131 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.