#252D43
Closest named color: Space Cadet (#2B2D42). oklch(30% 0.042 268.5), rgb(37, 45, 67).
Aa
White text reads best on this color (13.68:1).
About this color
#252D43 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.042 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.010 away. White text reads best on it, at 13.68:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.53:1 |
| White text | 13.68:1 |
Values
| HEX | #252D43 |
| RGB | rgb(37, 45, 67) |
| HSL | hsl(224, 29%, 20%) |
| OKLCH | oklch(30% 0.042 268.5) |
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 #252D43 | 13.68:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #252D43 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #252D43 text on white | 13.68:1 | AAA | Lc 100.2 | Preferred for body text |
| #252D43 text on black | 1.53:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B3C0E1
oklch(80.9% 0.049 268.3)
-
Step 400
400
#8C9FD3
oklch(70.7% 0.079 268.8)
-
Step 500
500
#7087C7
oklch(63.2% 0.1 268.4)
-
Step 600
600
#586FB4
oklch(55.5% 0.111 268.7)
-
Step 700
700
#485D9A
oklch(49% 0.101 268.2)
-
Step 800
800
#3C4C7D
oklch(42.7% 0.084 269)
-
Step 900
900
#334065
oklch(37.8% 0.066 268.4)
-
Step 950
950 (this color)
#252D43
oklch(30% 0.042 268.5)
#252D43 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) | #262F44 | 0.007 |
| Deuteranopia (no green cones) | #232C42 | 0.005 |
| Tritanopia (no blue cones) | #1B3135 | 0.036 |
| Achromatopsia (no color) | #2D2D2D | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252D43
#252D43
oklch(30% 0.042 268.5)
- #362D14
#362D14
oklch(30.1% 0.041 90)
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 #252D43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.010
- Gunmetal #293241 ΔE 0.020
- Oxford Blue #1B263B ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.039
- Dark #1B2431 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.049
- Jet #212529 ΔE 0.050
Use #252D43 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.