#18241C
Closest named color: Jet (#212529). oklch(24.6% 0.023 155.2), rgb(24, 36, 28).
Aa
White text reads best on this color (16.05:1).
About this color
#18241C is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.023. 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 16.05:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.30:1 |
| White text | 16.05:1 |
Values
| HEX | #18241C |
| RGB | rgb(24, 36, 28) |
| HSL | hsl(140, 20%, 12%) |
| OKLCH | oklch(24.6% 0.023 155.2) |
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 #18241C | 16.05:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #18241C | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #18241C text on white | 16.05:1 | AAA | Lc 103.0 | Preferred for body text |
| #18241C text on black | 1.30:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D2DCD5
oklch(88.5% 0.014 155.6)
-
Step 300
300
#B4C6B9
oklch(80.9% 0.027 154.4)
-
Step 400
400
#8CA995
oklch(70.7% 0.043 155)
-
Step 500
500
#6F947B
oklch(63.2% 0.056 155)
-
Step 600
600
#577E64
oklch(55.6% 0.06 154.8)
-
Step 700
700
#476A53
oklch(49.1% 0.055 155.1)
-
Step 800
800
#3A5744
oklch(42.8% 0.047 155.2)
-
Step 900
900
#324739
oklch(37.6% 0.036 155.2)
-
Step 950
950 (this color)
#18241C
oklch(24.6% 0.023 155.2)
#18241C 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) | #24221C | 0.021 |
| Deuteranopia (no green cones) | #22211C | 0.019 |
| Tritanopia (no blue cones) | #162422 | 0.011 |
| Achromatopsia (no color) | #212121 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18241C
#18241C
oklch(24.6% 0.023 155.2)
- #281D25
#281D25
oklch(24.7% 0.022 336.3)
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 #18241C, 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 0.041
- Rich Black #0D1B2A ΔE 0.052
- Oxford Blue #1B263B ΔE 0.058
- Dark Brown #341C02 ΔE 0.059
- Dark Forest Green #002D04 ΔE 0.062
- Very Dark Green #062E03 ΔE 0.063
- Pakistan Green #283618 ΔE 0.074
Use #18241C 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.