#28181F
Closest named color: Jet (#212529). oklch(23.3% 0.028 351.6), rgb(40, 24, 31).
Aa
White text reads best on this color (16.92:1).
About this color
#28181F is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.043 away. White text reads best on it, at 16.92:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.24:1 |
| White text | 16.92:1 |
Values
| HEX | #28181F |
| RGB | rgb(40, 24, 31) |
| HSL | hsl(334, 25%, 13%) |
| OKLCH | oklch(23.3% 0.028 351.6) |
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 #28181F | 16.92:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #28181F | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #28181F text on white | 16.92:1 | AAA | Lc 103.8 | Preferred for body text |
| #28181F 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EA
oklch(93.5% 0.01 352.4)
-
Step 200
200
#E4D4DA
oklch(88.5% 0.019 352.7)
-
Step 300
300
#D3B8C3
oklch(80.9% 0.034 351.4)
-
Step 400
400
#BC93A4
oklch(70.7% 0.054 351.8)
-
Step 500
500
#AA788E
oklch(63% 0.069 351.2)
-
Step 600
600
#956178
oklch(55.6% 0.074 351.7)
-
Step 700
700
#7F5065
oklch(49.1% 0.069 351.6)
-
Step 800
800
#674252
oklch(42.7% 0.056 352.2)
-
Step 900
900
#543844
oklch(37.7% 0.044 352)
-
Step 950
950 (this color)
#28181F
oklch(23.3% 0.028 351.6)
#28181F 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) | #1A1B1F | 0.029 |
| Deuteranopia (no green cones) | #1D1E1F | 0.029 |
| Tritanopia (no blue cones) | #2A181A | 0.010 |
| Achromatopsia (no color) | #1D1D1D | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28181F
#28181F
oklch(23.3% 0.028 351.6)
- #0E221C
#0E221C
oklch(23.3% 0.029 172.2)
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 #28181F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.043
- Dark #1B2431 ΔE 0.048
- Rich Black #0D1B2A ΔE 0.052
- Dark Brown #341C02 ΔE 0.057
- Oxford Blue #1B263B ΔE 0.062
- Dark Maroon #3C0008 ΔE 0.068
- Eggplant #380835 ΔE 0.071
- Chocolate Brown #411900 ΔE 0.072
Use #28181F 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.