#281E37
Closest named color: Oxford Blue (#1B263B). oklch(25.9% 0.047 301.6), rgb(40, 30, 55).
Aa
White text reads best on this color (15.77:1).
About this color
#281E37 is a dark, muted purple. In OKLCH its lightness is 26%, its chroma 0.047 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.032 away. White text reads best on it, at 15.77:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.33:1 |
| White text | 15.77:1 |
Values
| HEX | #281E37 |
| RGB | rgb(40, 30, 55) |
| HSL | hsl(264, 29%, 17%) |
| OKLCH | oklch(25.9% 0.047 301.6) |
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 #281E37 | 15.77:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #281E37 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #281E37 text on white | 15.77:1 | AAA | Lc 102.7 | Preferred for body text |
| #281E37 text on black | 1.33:1 | 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
#ECE7F3
oklch(93.5% 0.017 304.8)
-
Step 200
200
#DCD5EB
oklch(88.5% 0.031 300.3)
-
Step 300
300
#C7B9E0
oklch(81% 0.056 301.5)
-
Step 400
400
#AA93D0
oklch(70.6% 0.091 301.4)
-
Step 500
500
#9678C3
oklch(63.1% 0.114 301.6)
-
Step 600
600
#8160B0
oklch(55.7% 0.124 301.5)
-
Step 700
700
#6D4F97
oklch(49.2% 0.115 301.5)
-
Step 800
800
#59417B
oklch(42.8% 0.096 301.6)
-
Step 900
900
#493763
oklch(37.7% 0.076 301.7)
-
Step 950
950 (this color)
#281E37
oklch(25.9% 0.047 301.6)
#281E37 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) | #182338 | 0.031 |
| Deuteranopia (no green cones) | #1A2336 | 0.029 |
| Tritanopia (no blue cones) | #252227 | 0.038 |
| Achromatopsia (no color) | #232323 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281E37
#281E37
oklch(25.9% 0.047 301.6)
- #20270B
#20270B
oklch(25.8% 0.047 121.5)
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 #281E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.032
- Dark #1B2431 ΔE 0.034
- Jet #212529 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.056
- Eggplant #380835 ΔE 0.060
- Dark Purple #35063E ΔE 0.064
- Gunmetal #293241 ΔE 0.064
Use #281E37 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.