#281D31
Closest named color: Dark (#1B2431). oklch(25.3% 0.04 308.9), rgb(40, 29, 49).
Aa
White text reads best on this color (16.02:1).
About this color
#281D31 is a dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.040 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.032 away. White text reads best on it, at 16.02:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.31:1 |
| White text | 16.02:1 |
Values
| HEX | #281D31 |
| RGB | rgb(40, 29, 49) |
| HSL | hsl(273, 26%, 15%) |
| OKLCH | oklch(25.3% 0.04 308.9) |
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 #281D31 | 16.02:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #281D31 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #281D31 text on white | 16.02:1 | AAA | Lc 102.9 | Preferred for body text |
| #281D31 text on black | 1.31:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE8F1
oklch(93.7% 0.013 306)
-
Step 200
200
#DED5E7
oklch(88.6% 0.026 308.1)
-
Step 300
300
#C9B9D8
oklch(80.9% 0.046 308.5)
-
Step 400
400
#AE94C5
oklch(70.7% 0.076 308.6)
-
Step 500
500
#9A79B6
oklch(63.1% 0.096 308.6)
-
Step 600
600
#8561A2
oklch(55.6% 0.105 308.8)
-
Step 700
700
#71508A
oklch(49.1% 0.097 309.4)
-
Step 800
800
#5C4270
oklch(42.7% 0.08 309.3)
-
Step 900
900
#4B385B
oklch(37.7% 0.063 308.5)
-
Step 950
950 (this color)
#281D31
oklch(25.3% 0.04 308.9)
#281D31 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) | #192132 | 0.029 |
| Deuteranopia (no green cones) | #1C2230 | 0.027 |
| Tritanopia (no blue cones) | #272024 | 0.030 |
| Achromatopsia (no color) | #212121 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281D31
#281D31
oklch(25.3% 0.04 308.9)
- #1C2611
#1C2611
oklch(25.3% 0.04 129.7)
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 #281D31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.036
- Jet #212529 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.055
- Eggplant #380835 ΔE 0.061
- Aubergine #3D0734 ΔE 0.066
- Dark Purple #35063E ΔE 0.067
Use #281D31 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.