#231C15
Closest named color: Jet (#212529). oklch(23.2% 0.017 66.8), rgb(35, 28, 21).
Aa
White text reads best on this color (16.82:1).
About this color
#231C15 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.040 away. White text reads best on it, at 16.82:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.24:1 |
| White text | 16.82:1 |
Values
| HEX | #231C15 |
| RGB | rgb(35, 28, 21) |
| HSL | hsl(30, 25%, 11%) |
| OKLCH | oklch(23.2% 0.017 66.8) |
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 #231C15 | 16.82:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #231C15 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #231C15 text on white | 16.82:1 | AAA | Lc 103.7 | Preferred for body text |
| #231C15 text on black | 1.24:1 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EDE9E6
oklch(93.6% 0.006 59.6)
-
Step 200
200
#DED8D2
oklch(88.5% 0.011 67.7)
-
Step 300
300
#CABEB3
oklch(80.8% 0.02 65.1)
-
Step 400
400
#AF9D8C
oklch(70.7% 0.032 65.7)
-
Step 500
500
#9B856F
oklch(63.1% 0.042 67)
-
Step 600
600
#856F58
oklch(55.7% 0.044 68)
-
Step 700
700
#715C48
oklch(49% 0.041 65.2)
-
Step 800
800
#5C4C3B
oklch(42.8% 0.034 68.4)
-
Step 900
900
#4B3F33
oklch(37.7% 0.026 66.9)
-
Step 950
950 (this color)
#231C15
oklch(23.2% 0.017 66.8)
#231C15 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) | #1E1C15 | 0.010 |
| Deuteranopia (no green cones) | #201E15 | 0.009 |
| Tritanopia (no blue cones) | #251A1A | 0.014 |
| Achromatopsia (no color) | #1D1D1D | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231C15
#231C15
oklch(23.2% 0.017 66.8)
- #171E25
#171E25
oklch(23.1% 0.017 248.6)
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 #231C15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.040
- Dark Brown #341C02 ΔE 0.043
- Dark #1B2431 ΔE 0.051
- Rich Black #0D1B2A ΔE 0.054
- Chocolate Brown #411900 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.069
- Rich Navy #001219 ΔE 0.079
- Dark Maroon #3C0008 ΔE 0.080
Use #231C15 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.