#252D47
Closest named color: Space Cadet (#2B2D42). oklch(30.3% 0.049 270.3), rgb(37, 45, 71).
Aa
White text reads best on this color (13.59:1).
About this color
#252D47 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.049 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.013 away. White text reads best on it, at 13.59:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.54:1 |
| White text | 13.59:1 |
Values
| HEX | #252D47 |
| RGB | rgb(37, 45, 71) |
| HSL | hsl(226, 31%, 21%) |
| OKLCH | oklch(30.3% 0.049 270.3) |
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 #252D47 | 13.59:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #252D47 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #252D47 text on white | 13.59:1 | AAA | Lc 100.1 | Preferred for body text |
| #252D47 text on black | 1.54:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D1D9EF
oklch(88.6% 0.031 269.8)
-
Step 300
300
#B2BFE7
oklch(80.8% 0.058 270.9)
-
Step 400
400
#8A9EDB
oklch(70.7% 0.093 270)
-
Step 500
500
#6E85D1
oklch(63.2% 0.118 270)
-
Step 600
600
#576DBE
oklch(55.6% 0.128 270.4)
-
Step 700
700
#475BA4
oklch(49.2% 0.119 270)
-
Step 800
800
#3B4A85
oklch(42.7% 0.099 270.9)
-
Step 900
900
#323F6A
oklch(37.8% 0.076 269.8)
-
Step 950
950 (this color)
#252D47
oklch(30.3% 0.049 270.3)
#252D47 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) | #243048 | 0.010 |
| Deuteranopia (no green cones) | #212D46 | 0.006 |
| Tritanopia (no blue cones) | #193236 | 0.044 |
| Achromatopsia (no color) | #2E2E2E | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252D47
#252D47
oklch(30.3% 0.049 270.3)
- #382D0E
#382D0E
oklch(30.2% 0.049 89.5)
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 #252D47, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.013
- Gunmetal #293241 ΔE 0.024
- Prussian Blue #1D3557 ΔE 0.034
- Oxford Blue #1B263B ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.049
- Dark #1B2431 ΔE 0.050
- Marine #042E60 ΔE 0.054
Use #252D47 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.