#281D39
Closest named color: Oxford Blue (#1B263B). oklch(25.8% 0.053 300.9), rgb(40, 29, 57).
Aa
White text reads best on this color (15.84:1).
About this color
#281D39 is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.053 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.034 away. White text reads best on it, at 15.84:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.053) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.32:1 |
| White text | 15.84:1 |
Values
| HEX | #281D39 |
| RGB | rgb(40, 29, 57) |
| HSL | hsl(264, 33%, 17%) |
| OKLCH | oklch(25.8% 0.053 300.9) |
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 #281D39 | 15.84:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #281D39 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #281D39 text on white | 15.84:1 | AAA | Lc 102.7 | Preferred for body text |
| #281D39 text on black | 1.32:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DDD4ED
oklch(88.5% 0.035 302)
-
Step 300
300
#C7B8E3
oklch(80.9% 0.062 301)
-
Step 400
400
#AB92D5
oklch(70.7% 0.099 301)
-
Step 500
500
#9776CA
oklch(63.2% 0.127 301)
-
Step 600
600
#825DB7
oklch(55.7% 0.139 301)
-
Step 700
700
#6E4C9E
oklch(49.2% 0.13 300.9)
-
Step 800
800
#593F80
oklch(42.7% 0.107 300.4)
-
Step 900
900
#493667
oklch(37.7% 0.084 300.3)
-
Step 950
950 (this color)
#281D39
oklch(25.8% 0.053 300.9)
#281D39 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) | #16223A | 0.033 |
| Deuteranopia (no green cones) | #182238 | 0.031 |
| Tritanopia (no blue cones) | #252228 | 0.041 |
| Achromatopsia (no color) | #222222 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281D39
#281D39
oklch(25.8% 0.053 300.9)
- #202706
#202706
oklch(25.8% 0.053 120.4)
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 #281D39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.034
- Dark #1B2431 ΔE 0.038
- Jet #212529 ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.057
- Eggplant #380835 ΔE 0.057
- Dark Purple #35063E ΔE 0.059
- Aubergine #3D0734 ΔE 0.064
Use #281D39 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.