#281C33
Closest named color: Dark (#1B2431). oklch(25.2% 0.045 307.4), rgb(40, 28, 51).
Aa
White text reads best on this color (16.10:1).
About this color
#281C33 is a dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.045 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.035 away. White text reads best on it, at 16.10:1.
| Hue family | Purples |
| Lightness | dark (25%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.30:1 |
| White text | 16.10:1 |
Values
| HEX | #281C33 |
| RGB | rgb(40, 28, 51) |
| HSL | hsl(271, 29%, 15%) |
| OKLCH | oklch(25.2% 0.045 307.4) |
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 #281C33 | 16.10:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #281C33 | 1.30:1 | Fails | Lc 0.0 | Not readable |
| #281C33 text on white | 16.10:1 | AAA | Lc 103.0 | Preferred for body text |
| #281C33 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE7F2
oklch(93.5% 0.016 306.4)
-
Step 200
200
#DED4E9
oklch(88.4% 0.03 307.1)
-
Step 300
300
#CAB8DC
oklch(80.9% 0.054 307.7)
-
Step 400
400
#AF93CA
oklch(70.8% 0.084 307.5)
-
Step 500
500
#9B77BD
oklch(63.1% 0.109 307.1)
-
Step 600
600
#865FA9
oklch(55.7% 0.118 307.3)
-
Step 700
700
#724E91
oklch(49.2% 0.11 307.6)
-
Step 800
800
#5C4076
oklch(42.7% 0.092 306.8)
-
Step 900
900
#4C375F
oklch(37.8% 0.071 307.5)
-
Step 950
950 (this color)
#281C33
oklch(25.2% 0.045 307.4)
#281C33 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) | #172134 | 0.033 |
| Deuteranopia (no green cones) | #1A2132 | 0.030 |
| Tritanopia (no blue cones) | #261F25 | 0.032 |
| Achromatopsia (no color) | #212121 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281C33
#281C33
oklch(25.2% 0.045 307.4)
- #1C260D
#1C260D
oklch(25.2% 0.045 127.4)
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 #281C33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.035
- Oxford Blue #1B263B ΔE 0.037
- Jet #212529 ΔE 0.042
- Rich Black #0D1B2A ΔE 0.052
- Space Cadet #2B2D42 ΔE 0.057
- Eggplant #380835 ΔE 0.057
- Dark Purple #35063E ΔE 0.062
- Aubergine #3D0734 ΔE 0.063
Use #281C33 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.