#251E4C
Closest named color: Oxford Blue (#1B263B). oklch(27.1% 0.082 286.6), rgb(37, 30, 76).
Aa
White text reads best on this color (15.34:1).
About this color
#251E4C is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.082 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.046 away. White text reads best on it, at 15.34:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.34:1 |
Values
| HEX | #251E4C |
| RGB | rgb(37, 30, 76) |
| HSL | hsl(249, 43%, 21%) |
| OKLCH | oklch(27.1% 0.082 286.6) |
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 #251E4C | 15.34:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #251E4C | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #251E4C text on white | 15.34:1 | AAA | Lc 102.1 | Preferred for body text |
| #251E4C 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E8E8FC
oklch(93.7% 0.027 285.9)
-
Step 200
200
#D6D5FC
oklch(88.6% 0.053 286.4)
-
Step 300
300
#BBB8FD
oklch(81% 0.097 286)
-
Step 400
400
#9B8FFB
oklch(70.7% 0.155 286.8)
-
Step 500
500
#856FF9
oklch(63.2% 0.198 286.6)
-
Step 600
600
#7152E8
oklch(55.7% 0.215 286.7)
-
Step 700
700
#5F41CA
oklch(49.2% 0.2 286.5)
-
Step 800
800
#4D37A3
oklch(42.8% 0.165 286.5)
-
Step 900
900
#3F3181
oklch(37.6% 0.129 286.5)
-
Step 950
950 (this color)
#251E4C
oklch(27.1% 0.082 286.6)
#251E4C 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) | #06264E | 0.043 |
| Deuteranopia (no green cones) | #05244B | 0.043 |
| Tritanopia (no blue cones) | #182831 | 0.069 |
| Achromatopsia (no color) | #252525 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #251E4C
#251E4C
oklch(27.1% 0.082 286.6)
- #2A2800
#2A2800
oklch(27% 0.058 106.8)
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 #251E4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.046
- Dark Indigo #1F0954 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.056
- Dark #1B2431 ΔE 0.061
- Marine #042E60 ΔE 0.062
- Dark Purple #35063E ΔE 0.064
- Midnight Blue #191970 ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.069
Use #251E4C 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.