#25183D
Closest named color: Oxford Blue (#1B263B). oklch(24.7% 0.069 297.3), rgb(37, 24, 61).
Aa
White text reads best on this color (16.44:1).
About this color
#25183D is a very dark, muted purple. In OKLCH its lightness is 25%, its chroma 0.069 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.047 away. White text reads best on it, at 16.44:1.
| Hue family | Purples |
| Lightness | very dark (25%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.27:1 |
| White text | 16.44:1 |
Values
| HEX | #25183D |
| RGB | rgb(37, 24, 61) |
| HSL | hsl(261, 44%, 17%) |
| OKLCH | oklch(24.7% 0.069 297.3) |
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 #25183D | 16.44:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #25183D | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #25183D text on white | 16.44:1 | AAA | Lc 103.3 | Preferred for body text |
| #25183D text on black | 1.27:1 | 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
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD3F4
oklch(88.4% 0.046 297.9)
-
Step 300
300
#C6B6EF
oklch(80.9% 0.081 297.4)
-
Step 400
400
#AA8EE7
oklch(70.7% 0.13 297.5)
-
Step 500
500
#966FE0
oklch(63.1% 0.166 297.3)
-
Step 600
600
#8154CE
oklch(55.6% 0.181 297.1)
-
Step 700
700
#6E44B2
oklch(49.2% 0.167 297.5)
-
Step 800
800
#593890
oklch(42.6% 0.14 297.4)
-
Step 900
900
#493273
oklch(37.8% 0.108 297.3)
-
Step 950
950 (this color)
#25183D
oklch(24.7% 0.069 297.3)
#25183D 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) | #091F3E | 0.046 |
| Deuteranopia (no green cones) | #0D1F3C | 0.043 |
| Tritanopia (no blue cones) | #201F27 | 0.054 |
| Achromatopsia (no color) | #1F1F1F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25183D
#25183D
oklch(24.7% 0.069 297.3)
- #1F2400
#1F2400
oklch(24.7% 0.057 117.2)
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 #25183D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.047
- Dark Purple #35063E ΔE 0.050
- Dark #1B2431 ΔE 0.052
- Eggplant #380835 ΔE 0.054
- Midnight Purple #280137 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.057
- Dark Indigo #1F0954 ΔE 0.057
- Deep Purple #36013F ΔE 0.058
Use #25183D 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.