#251838
Closest named color: Oxford Blue (#1B263B). oklch(24.3% 0.061 300.7), rgb(37, 24, 56).
Aa
White text reads best on this color (16.58:1).
About this color
#251838 is a very dark, muted purple. In OKLCH its lightness is 24%, its chroma 0.061 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.046 away. White text reads best on it, at 16.58:1.
| Hue family | Purples |
| Lightness | very dark (24%) |
| Chroma | muted (0.061) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.26:1 |
| White text | 16.58:1 |
Values
| HEX | #251838 |
| RGB | rgb(37, 24, 56) |
| HSL | hsl(264, 40%, 16%) |
| OKLCH | oklch(24.3% 0.061 300.7) |
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 #251838 | 16.58:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #251838 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #251838 text on white | 16.58:1 | AAA | Lc 103.4 | Preferred for body text |
| #251838 text on black | 1.26:1 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4F0
oklch(88.6% 0.039 300.2)
-
Step 300
300
#C8B6E8
oklch(80.8% 0.072 301.3)
-
Step 400
400
#AC8FDD
oklch(70.6% 0.115 300.6)
-
Step 500
500
#9972D4
oklch(63.2% 0.147 300.6)
-
Step 600
600
#8458C1
oklch(55.7% 0.16 300.7)
-
Step 700
700
#7047A6
oklch(49.1% 0.148 301)
-
Step 800
800
#5B3B87
oklch(42.7% 0.123 300.7)
-
Step 900
900
#4A336C
oklch(37.6% 0.097 300.5)
-
Step 950
950 (this color)
#251838
oklch(24.3% 0.061 300.7)
#251838 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) | #0E1E39 | 0.041 |
| Deuteranopia (no green cones) | #111E37 | 0.038 |
| Tritanopia (no blue cones) | #211E25 | 0.047 |
| Achromatopsia (no color) | #1E1E1E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #251838
#251838
oklch(24.3% 0.061 300.7)
- #1C2400
#1C2400
oklch(24.4% 0.059 121.2)
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 #251838, 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 #1B2431 ΔE 0.047
- Dark Purple #35063E ΔE 0.052
- Eggplant #380835 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.053
- Midnight Purple #280137 ΔE 0.056
- Very Dark Purple #2A0134 ΔE 0.056
- Jet #212529 ΔE 0.059
Use #251838 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.