#281A30
Closest named color: Dark (#1B2431). oklch(24.6% 0.045 312.6), rgb(40, 26, 48).
Aa
White text reads best on this color (16.39:1).
About this color
#281A30 is a very dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.045 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark (#1B2431), ΔE 0.039 away. White text reads best on it, at 16.39:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark (#1B2431) |
| Black text | 1.28:1 |
| White text | 16.39:1 |
Values
| HEX | #281A30 |
| RGB | rgb(40, 26, 48) |
| HSL | hsl(278, 30%, 15%) |
| OKLCH | oklch(24.6% 0.045 312.6) |
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 #281A30 | 16.39:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #281A30 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #281A30 text on white | 16.39:1 | AAA | Lc 103.3 | Preferred for body text |
| #281A30 text on black | 1.28:1 | 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
#EDE7F1
oklch(93.6% 0.015 312.2)
-
Step 200
200
#E0D4E7
oklch(88.5% 0.029 313.3)
-
Step 300
300
#CDB7DA
oklch(80.9% 0.054 313)
-
Step 400
400
#B391C7
oklch(70.7% 0.086 312.7)
-
Step 500
500
#A075B9
oklch(63.1% 0.11 312.4)
-
Step 600
600
#8B5DA5
oklch(55.6% 0.119 312.4)
-
Step 700
700
#764C8D
oklch(49.1% 0.11 312.7)
-
Step 800
800
#603F72
oklch(42.7% 0.09 312.8)
-
Step 900
900
#4E365C
oklch(37.7% 0.07 312.3)
-
Step 950
950 (this color)
#281A30
oklch(24.6% 0.045 312.6)
#281A30 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) | #161F31 | 0.035 |
| Deuteranopia (no green cones) | #19202F | 0.033 |
| Tritanopia (no blue cones) | #271D22 | 0.032 |
| Achromatopsia (no color) | #1F1F1F | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281A30
#281A30
oklch(24.6% 0.045 312.6)
- #18250E
#18250E
oklch(24.6% 0.044 133)
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 #281A30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.039
- Oxford Blue #1B263B ΔE 0.043
- Jet #212529 ΔE 0.045
- Rich Black #0D1B2A ΔE 0.051
- Eggplant #380835 ΔE 0.054
- Dark Purple #35063E ΔE 0.061
- Aubergine #3D0734 ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.064
Use #281A30 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.