#252A41
Closest named color: Space Cadet (#2B2D42). oklch(29.1% 0.043 274.1), rgb(37, 42, 65).
Aa
White text reads best on this color (14.13:1).
About this color
#252A41 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.043 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.015 away. White text reads best on it, at 14.13:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.13:1 |
Values
| HEX | #252A41 |
| RGB | rgb(37, 42, 65) |
| HSL | hsl(229, 27%, 20%) |
| OKLCH | oklch(29.1% 0.043 274.1) |
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 #252A41 | 14.13:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #252A41 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #252A41 text on white | 14.13:1 | AAA | Lc 100.8 | Preferred for body text |
| #252A41 text on black | 1.48:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D3D8EC
oklch(88.4% 0.028 274.6)
-
Step 300
300
#B6BFE2
oklch(80.9% 0.05 273.9)
-
Step 400
400
#919DD4
oklch(70.7% 0.082 274.6)
-
Step 500
500
#7684C8
oklch(63% 0.104 274.2)
-
Step 600
600
#5F6DB5
oklch(55.6% 0.113 273.9)
-
Step 700
700
#4F5B9B
oklch(49.1% 0.103 274)
-
Step 800
800
#414A7E
oklch(42.7% 0.087 274.7)
-
Step 900
900
#373E65
oklch(37.6% 0.067 275)
-
Step 950
950 (this color)
#252A41
oklch(29.1% 0.043 274.1)
#252A41 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) | #222C42 | 0.007 |
| Deuteranopia (no green cones) | #202A40 | 0.008 |
| Tritanopia (no blue cones) | #1D2F32 | 0.039 |
| Achromatopsia (no color) | #2B2B2B | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252A41
#252A41
oklch(29.1% 0.043 274.1)
- #332B11
#332B11
oklch(29.1% 0.042 92.5)
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 #252A41, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.015
- Oxford Blue #1B263B ΔE 0.024
- Gunmetal #293241 ΔE 0.029
- Dark #1B2431 ΔE 0.038
- Jet #212529 ΔE 0.045
- Prussian Blue #1D3557 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.055
- Midnight Green #073B4C ΔE 0.058
Use #252A41 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.