#281F1B
Closest named color: Jet (#212529). oklch(24.9% 0.016 45.3), rgb(40, 31, 27).
Aa
White text reads best on this color (16.12:1).
About this color
#281F1B is a very dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.028 away. White text reads best on it, at 16.12:1.
| Hue family | Neutrals |
| Lightness | very dark (25%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.30:1 |
| White text | 16.12:1 |
Values
| HEX | #281F1B |
| RGB | rgb(40, 31, 27) |
| HSL | hsl(18, 19%, 13%) |
| OKLCH | oklch(24.9% 0.016 45.3) |
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 #281F1B | 16.12:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #281F1B | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #281F1B text on white | 16.12:1 | AAA | Lc 103.1 | Preferred for body text |
| #281F1B 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E7
oklch(93.7% 0.005 48.7)
-
Step 200
200
#DFD7D3
oklch(88.4% 0.01 48.6)
-
Step 300
300
#CCBDB7
oklch(80.9% 0.019 43.2)
-
Step 400
400
#B29B91
oklch(70.7% 0.031 44.9)
-
Step 500
500
#9E8376
oklch(63.1% 0.038 47.2)
-
Step 600
600
#896C5F
oklch(55.6% 0.042 45.4)
-
Step 700
700
#745A4E
oklch(49.1% 0.039 46)
-
Step 800
800
#5E4A40
oklch(42.7% 0.032 48)
-
Step 900
900
#4D3E37
oklch(37.8% 0.024 46.4)
-
Step 950
950 (this color)
#281F1B
oklch(24.9% 0.016 45.3)
#281F1B 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) | #21201B | 0.014 |
| Deuteranopia (no green cones) | #23221B | 0.014 |
| Tritanopia (no blue cones) | #2A1E1E | 0.009 |
| Achromatopsia (no color) | #212121 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281F1B
#281F1B
oklch(24.9% 0.016 45.3)
- #192327
#192327
oklch(24.8% 0.016 224.3)
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 #281F1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.028
- Dark Brown #341C02 ΔE 0.040
- Dark #1B2431 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.059
- Oxford Blue #1B263B ΔE 0.060
- Chocolate Brown #411900 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.075
- Deep Brown #410200 ΔE 0.080
Use #281F1B 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.