#252D49
Closest named color: Space Cadet (#2B2D42). oklch(30.4% 0.052 270.9), rgb(37, 45, 73).
Aa
White text reads best on this color (13.54:1).
About this color
#252D49 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.052 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.016 away. White text reads best on it, at 13.54:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.55:1 |
| White text | 13.54:1 |
Values
| HEX | #252D49 |
| RGB | rgb(37, 45, 73) |
| HSL | hsl(227, 33%, 22%) |
| OKLCH | oklch(30.4% 0.052 270.9) |
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 #252D49 | 13.54:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #252D49 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #252D49 text on white | 13.54:1 | AAA | Lc 100.0 | Preferred for body text |
| #252D49 text on black | 1.55:1 | 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
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D8F1
oklch(88.4% 0.035 271.5)
-
Step 300
300
#B2BFE9
oklch(80.9% 0.061 271.5)
-
Step 400
400
#8A9DDF
oklch(70.7% 0.099 271.4)
-
Step 500
500
#6D84D5
oklch(63.1% 0.125 270.5)
-
Step 600
600
#566CC3
oklch(55.6% 0.137 270.7)
-
Step 700
700
#475AA8
oklch(49.2% 0.126 270.8)
-
Step 800
800
#3A4A88
oklch(42.8% 0.104 270.6)
-
Step 900
900
#323E6D
oklch(37.7% 0.082 271.2)
-
Step 950
950 (this color)
#252D49
oklch(30.4% 0.052 270.9)
#252D49 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) | #23304A | 0.010 |
| Deuteranopia (no green cones) | #202D48 | 0.008 |
| Tritanopia (no blue cones) | #183337 | 0.047 |
| Achromatopsia (no color) | #2E2E2E | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252D49
#252D49
oklch(30.4% 0.052 270.9)
- #392E0B
#392E0B
oklch(30.6% 0.053 91.3)
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 #252D49, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.016
- Gunmetal #293241 ΔE 0.026
- Prussian Blue #1D3557 ΔE 0.032
- Oxford Blue #1B263B ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.050
- Marine #042E60 ΔE 0.051
- Dark #1B2431 ΔE 0.053
Use #252D49 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.