#231D24
Closest named color: Jet (#212529). oklch(24.1% 0.016 321.4), rgb(35, 29, 36).
Aa
White text reads best on this color (16.50:1).
About this color
#231D24 is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.027 away. White text reads best on it, at 16.50:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.27:1 |
| White text | 16.50:1 |
Values
| HEX | #231D24 |
| RGB | rgb(35, 29, 36) |
| HSL | hsl(291, 11%, 13%) |
| OKLCH | oklch(24.1% 0.016 321.4) |
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 #231D24 | 16.50:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #231D24 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #231D24 text on white | 16.50:1 | AAA | Lc 103.5 | Preferred for body text |
| #231D24 text on black | 1.27:1 | 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
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#EBE9EC
oklch(93.6% 0.005 314.8)
-
Step 200
200
#DCD7DD
oklch(88.5% 0.01 320.5)
-
Step 300
300
#C6BDC8
oklch(80.9% 0.018 320.1)
-
Step 400
400
#AA9BAC
oklch(70.8% 0.03 322.2)
-
Step 500
500
#958298
oklch(63.1% 0.039 321.7)
-
Step 600
600
#7F6C82
oklch(55.7% 0.04 321.7)
-
Step 700
700
#6B5A6E
oklch(49.1% 0.038 321.2)
-
Step 800
800
#57495A
oklch(42.6% 0.033 320.3)
-
Step 900
900
#483D4A
oklch(37.6% 0.026 321.1)
-
Step 950
950 (this color)
#231D24
oklch(24.1% 0.016 321.4)
#231D24 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) | #1C1E24 | 0.013 |
| Deuteranopia (no green cones) | #1E1F24 | 0.011 |
| Tritanopia (no blue cones) | #231E1F | 0.011 |
| Achromatopsia (no color) | #1F1F1F | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231D24
#231D24
oklch(24.1% 0.016 321.4)
- #1B211A
#1B211A
oklch(23.9% 0.016 141.1)
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 #231D24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.027
- Dark #1B2431 ΔE 0.031
- Rich Black #0D1B2A ΔE 0.041
- Oxford Blue #1B263B ΔE 0.046
- Dark Brown #341C02 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.070
- Chocolate Brown #411900 ΔE 0.079
- Gunmetal #293241 ΔE 0.079
Use #231D24 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.