#281E40
Closest named color: Oxford Blue (#1B263B). oklch(26.5% 0.062 295.4), rgb(40, 30, 64).
Aa
White text reads best on this color (15.55:1).
About this color
#281E40 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.062 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.035 away. White text reads best on it, at 15.55:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.55:1 |
Values
| HEX | #281E40 |
| RGB | rgb(40, 30, 64) |
| HSL | hsl(258, 36%, 18%) |
| OKLCH | oklch(26.5% 0.062 295.4) |
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 #281E40 | 15.55:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #281E40 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #281E40 text on white | 15.55:1 | AAA | Lc 102.4 | Preferred for body text |
| #281E40 text on black | 1.34:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F2
oklch(88.5% 0.041 296.2)
-
Step 300
300
#C4B8EC
oklch(81% 0.073 295.3)
-
Step 400
400
#A691E2
oklch(70.7% 0.118 295.1)
-
Step 500
500
#9273DA
oklch(63.1% 0.152 295.6)
-
Step 600
600
#7D5AC7
oklch(55.7% 0.163 295.4)
-
Step 700
700
#6949AC
oklch(49.1% 0.152 295.1)
-
Step 800
800
#563C8B
oklch(42.6% 0.126 295.7)
-
Step 900
900
#46346F
oklch(37.5% 0.098 295.3)
-
Step 950
950 (this color)
#281E40
oklch(26.5% 0.062 295.4)
#281E40 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) | #132441 | 0.037 |
| Deuteranopia (no green cones) | #15233F | 0.034 |
| Tritanopia (no blue cones) | #23242B | 0.050 |
| Achromatopsia (no color) | #242424 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281E40
#281E40
oklch(26.5% 0.062 295.4)
- #242800
#242800
oklch(26.4% 0.06 115.4)
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 #281E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.035
- Dark #1B2431 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.048
- Jet #212529 ΔE 0.056
- Dark Purple #35063E ΔE 0.059
- Eggplant #380835 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.065
- Gunmetal #293241 ΔE 0.065
Use #281E40 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.