#281F41
Closest named color: Oxford Blue (#1B263B). oklch(26.8% 0.062 294), rgb(40, 31, 65).
Aa
White text reads best on this color (15.41:1).
About this color
#281F41 is a dark, muted purple. In OKLCH its lightness is 27%, its chroma 0.062 and its hue 294°. 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 15.41:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.41:1 |
Values
| HEX | #281F41 |
| RGB | rgb(40, 31, 65) |
| HSL | hsl(256, 35%, 19%) |
| OKLCH | oklch(26.8% 0.062 294) |
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 #281F41 | 15.41:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #281F41 | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #281F41 text on white | 15.41:1 | AAA | Lc 102.3 | Preferred for body text |
| #281F41 text on black | 1.36:1 | 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
#EAE7F7
oklch(93.5% 0.022 294.6)
-
Step 200
200
#DAD5F2
oklch(88.6% 0.04 293.5)
-
Step 300
300
#C3B8EC
oklch(80.9% 0.073 294.4)
-
Step 400
400
#A592E3
oklch(70.8% 0.117 294)
-
Step 500
500
#9074DA
oklch(63% 0.15 294.3)
-
Step 600
600
#7B5BC8
oklch(55.7% 0.163 294)
-
Step 700
700
#684AAD
oklch(49.2% 0.152 294.1)
-
Step 800
800
#543D8C
oklch(42.7% 0.126 293.8)
-
Step 900
900
#453570
oklch(37.7% 0.098 293.6)
-
Step 950
950 (this color)
#281F41
oklch(26.8% 0.062 294)
#281F41 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) | #142542 | 0.035 |
| Deuteranopia (no green cones) | #152440 | 0.034 |
| Tritanopia (no blue cones) | #22252C | 0.050 |
| Achromatopsia (no color) | #252525 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #281F41
#281F41
oklch(26.8% 0.062 294)
- #262900
#262900
oklch(26.9% 0.06 113.9)
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 #281F41, 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 0.044
- Space Cadet #2B2D42 ΔE 0.046
- Jet #212529 ΔE 0.056
- Dark Purple #35063E ΔE 0.061
- Gunmetal #293241 ΔE 0.062
- Eggplant #380835 ΔE 0.063
- Rich Black #0D1B2A ΔE 0.067
Use #281F41 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.