#252E40
Closest named color: Space Cadet (#2B2D42). oklch(30.1% 0.035 263.8), rgb(37, 46, 64).
Aa
White text reads best on this color (13.60:1).
About this color
#252E40 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.035 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.011 away. White text reads best on it, at 13.60:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.54:1 |
| White text | 13.60:1 |
Values
| HEX | #252E40 |
| RGB | rgb(37, 46, 64) |
| HSL | hsl(220, 27%, 20%) |
| OKLCH | oklch(30.1% 0.035 263.8) |
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 #252E40 | 13.60:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #252E40 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #252E40 text on white | 13.60:1 | AAA | Lc 100.1 | Preferred for body text |
| #252E40 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D1D9E9
oklch(88.4% 0.024 264.4)
-
Step 300
300
#B3C1DC
oklch(80.9% 0.041 263.6)
-
Step 400
400
#8BA1CB
oklch(70.7% 0.067 263.2)
-
Step 500
500
#6F89BD
oklch(63.1% 0.084 263.7)
-
Step 600
600
#5772AA
oklch(55.5% 0.093 264)
-
Step 700
700
#476092
oklch(49.2% 0.086 263.3)
-
Step 800
800
#3B4E76
oklch(42.7% 0.071 264.2)
-
Step 900
900
#32415F
oklch(37.6% 0.055 263.6)
-
Step 950
950 (this color)
#252E40
oklch(30.1% 0.035 263.8)
#252E40 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) | #282F41 | 0.006 |
| Deuteranopia (no green cones) | #252D40 | 0.003 |
| Tritanopia (no blue cones) | #1D3234 | 0.032 |
| Achromatopsia (no color) | #2E2E2E | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252E40
#252E40
oklch(30.1% 0.035 263.8)
- #362D19
#362D19
oklch(30.1% 0.035 86.1)
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 #252E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.011
- Gunmetal #293241 ΔE 0.015
- Oxford Blue #1B263B ΔE 0.033
- Prussian Blue #1D3557 ΔE 0.042
- Dark Blue Grey #1F3B4D ΔE 0.043
- Dark #1B2431 ΔE 0.044
- Jet #212529 ΔE 0.047
- Midnight Green #073B4C ΔE 0.047
Use #252E40 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.