#231C25
Closest named color: Jet (#212529). oklch(23.9% 0.02 318.7), rgb(35, 28, 37).
Aa
White text reads best on this color (16.61:1).
About this color
#231C25 is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.030 away. White text reads best on it, at 16.61:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.26:1 |
| White text | 16.61:1 |
Values
| HEX | #231C25 |
| RGB | rgb(35, 28, 37) |
| HSL | hsl(287, 14%, 13%) |
| OKLCH | oklch(23.9% 0.02 318.7) |
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 #231C25 | 16.61:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #231C25 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #231C25 text on white | 16.61:1 | AAA | Lc 103.6 | Preferred for body text |
| #231C25 text on black | 1.26:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#ECE8ED
oklch(93.6% 0.008 319.4)
-
Step 200
200
#DDD6DF
oklch(88.4% 0.014 318.7)
-
Step 300
300
#C7BCCA
oklch(80.8% 0.023 319)
-
Step 400
400
#AB9AB0
oklch(70.8% 0.037 318.5)
-
Step 500
500
#96819C
oklch(63.1% 0.047 318.7)
-
Step 600
600
#816A87
oklch(55.7% 0.052 319.2)
-
Step 700
700
#6D5873
oklch(49.1% 0.049 318.6)
-
Step 800
800
#59485D
oklch(42.7% 0.04 319.8)
-
Step 900
900
#493C4C
oklch(37.6% 0.032 319.9)
-
Step 950
950 (this color)
#231C25
oklch(23.9% 0.02 318.7)
#231C25 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) | #1B1E25 | 0.016 |
| Deuteranopia (no green cones) | #1D1F25 | 0.015 |
| Tritanopia (no blue cones) | #231D1F | 0.013 |
| Achromatopsia (no color) | #1E1E1E | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231C25
#231C25
oklch(23.9% 0.02 318.7)
- #1A2118
#1A2118
oklch(23.8% 0.02 138.8)
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 #231C25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.030
- Dark #1B2431 ΔE 0.032
- Rich Black #0D1B2A ΔE 0.039
- Oxford Blue #1B263B ΔE 0.047
- Dark Brown #341C02 ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.071
- Eggplant #380835 ΔE 0.076
- Rich Navy #001219 ΔE 0.080
Use #231C25 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.