#231F29
Closest named color: Jet (#212529). oklch(24.8% 0.02 303.2), rgb(35, 31, 41).
Aa
White text reads best on this color (16.16:1).
About this color
#231F29 is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.021 away. White text reads best on it, at 16.16:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.29:1 |
| White text | 16.16:1 |
Values
| HEX | #231F29 |
| RGB | rgb(35, 31, 41) |
| HSL | hsl(264, 14%, 14%) |
| OKLCH | oklch(24.8% 0.02 303.2) |
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 #231F29 | 16.16:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #231F29 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #231F29 text on white | 16.16:1 | AAA | Lc 103.1 | Preferred for body text |
| #231F29 text on black | 1.29:1 | 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
#EBE9EE
oklch(93.7% 0.007 304.2)
-
Step 200
200
#DBD7E0
oklch(88.5% 0.013 306)
-
Step 300
300
#C3BDCD
oklch(80.8% 0.023 302.9)
-
Step 400
400
#A59BB4
oklch(70.6% 0.038 303.6)
-
Step 500
500
#8F83A1
oklch(63.1% 0.046 303.3)
-
Step 600
600
#796C8C
oklch(55.5% 0.051 303.3)
-
Step 700
700
#665A77
oklch(49% 0.048 303.6)
-
Step 800
800
#534A61
oklch(42.7% 0.039 302.6)
-
Step 900
900
#453E4F
oklch(37.8% 0.03 303.7)
-
Step 950
950 (this color)
#231F29
oklch(24.8% 0.02 303.2)
#231F29 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) | #1D2129 | 0.012 |
| Deuteranopia (no green cones) | #1E2129 | 0.011 |
| Tritanopia (no blue cones) | #222022 | 0.015 |
| Achromatopsia (no color) | #212121 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231F29
#231F29
oklch(24.8% 0.02 303.2)
- #1F2319
#1F2319
oklch(24.9% 0.019 125.5)
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 #231F29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.021
- Dark #1B2431 ΔE 0.022
- Oxford Blue #1B263B ΔE 0.037
- Rich Black #0D1B2A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.061
- Dark Brown #341C02 ΔE 0.067
- Gunmetal #293241 ΔE 0.070
- Eggplant #380835 ΔE 0.078
Use #231F29 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.