#252E4D
Closest named color: Space Cadet (#2B2D42). oklch(30.9% 0.057 270.5), rgb(37, 46, 77).
Aa
White text reads best on this color (13.31:1).
About this color
#252E4D is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.057 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.021 away. White text reads best on it, at 13.31:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.57:1 |
| White text | 13.31:1 |
Values
| HEX | #252E4D |
| RGB | rgb(37, 46, 77) |
| HSL | hsl(227, 35%, 22%) |
| OKLCH | oklch(30.9% 0.057 270.5) |
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 #252E4D | 13.31:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #252E4D | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #252E4D text on white | 13.31:1 | AAA | Lc 99.6 | Preferred for body text |
| #252E4D text on black | 1.57:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5EAF8
oklch(93.7% 0.02 270.2)
-
Step 200
200
#CFD8F3
oklch(88.4% 0.038 271)
-
Step 300
300
#B0BFED
oklch(80.9% 0.067 270.7)
-
Step 400
400
#879DE5
oklch(70.8% 0.109 270.5)
-
Step 500
500
#6A83DD
oklch(63.2% 0.138 270.3)
-
Step 600
600
#536ACB
oklch(55.6% 0.152 270.7)
-
Step 700
700
#4458AF
oklch(49.1% 0.14 270.7)
-
Step 800
800
#38488E
oklch(42.6% 0.117 271)
-
Step 900
900
#303D71
oklch(37.6% 0.09 271)
-
Step 950
950 (this color)
#252E4D
oklch(30.9% 0.057 270.5)
#252E4D 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) | #22314E | 0.010 |
| Deuteranopia (no green cones) | #1F2E4C | 0.009 |
| Tritanopia (no blue cones) | #163439 | 0.051 |
| Achromatopsia (no color) | #2F2F2F | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252E4D
#252E4D
oklch(30.9% 0.057 270.5)
- #3B2E07
#3B2E07
oklch(30.8% 0.057 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 #252E4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.021
- Prussian Blue #1D3557 ΔE 0.026
- Gunmetal #293241 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.043
- Oxford Blue #1B263B ΔE 0.043
- Marine #042E60 ΔE 0.046
- Midnight Green #073B4C ΔE 0.049
- Onyx #343A40 ΔE 0.058
Use #252E4D 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.