#252E4E
Closest named color: Space Cadet (#2B2D42). oklch(30.9% 0.059 270.7), rgb(37, 46, 78).
Aa
White text reads best on this color (13.29:1).
About this color
#252E4E is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.059 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.023 away. White text reads best on it, at 13.29:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.57:1 |
| White text | 13.29:1 |
Values
| HEX | #252E4E |
| RGB | rgb(37, 46, 78) |
| HSL | hsl(227, 36%, 23%) |
| OKLCH | oklch(30.9% 0.059 270.7) |
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 #252E4E | 13.29:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #252E4E | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #252E4E text on white | 13.29:1 | AAA | Lc 99.6 | Preferred for body text |
| #252E4E 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
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300
#AFBFEF
oklch(80.9% 0.07 270.4)
-
Step 400
400
#869CE7
oklch(70.6% 0.113 270.8)
-
Step 500
500
#6A82DF
oklch(63.1% 0.142 270.9)
-
Step 600
600
#526ACD
oklch(55.6% 0.155 270.4)
-
Step 700
700
#4357B1
oklch(49% 0.144 270.8)
-
Step 800
800
#374890
oklch(42.7% 0.12 270.6)
-
Step 900
900
#2F3D73
oklch(37.7% 0.094 270.4)
-
Step 950
950 (this color)
#252E4E
oklch(30.9% 0.059 270.7)
#252E4E 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) | #22314F | 0.010 |
| Deuteranopia (no green cones) | #1E2E4D | 0.010 |
| Tritanopia (no blue cones) | #15353A | 0.053 |
| Achromatopsia (no color) | #2F2F2F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252E4E
#252E4E
oklch(30.9% 0.059 270.7)
- #3B2F05
#3B2F05
oklch(31% 0.059 92)
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 #252E4E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.023
- Prussian Blue #1D3557 ΔE 0.025
- Gunmetal #293241 ΔE 0.031
- Dark Blue Grey #1F3B4D ΔE 0.043
- Oxford Blue #1B263B ΔE 0.044
- Marine #042E60 ΔE 0.045
- Midnight Green #073B4C ΔE 0.049
- Marine Blue #01386A ΔE 0.058
Use #252E4E 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.