#252E54
Closest named color: Prussian Blue (#1D3557). oklch(31.3% 0.069 271.8), rgb(37, 46, 84).
Aa
White text reads best on this color (13.14:1).
About this color
#252E54 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.069 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.022 away. White text reads best on it, at 13.14:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.59:1 |
| White text | 13.14:1 |
Values
| HEX | #252E54 |
| RGB | rgb(37, 46, 84) |
| HSL | hsl(229, 39%, 24%) |
| OKLCH | oklch(31.3% 0.069 271.8) |
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 #252E54 | 13.14:1 | AAA | Lc -102.6 | Preferred for body text |
| Black text on #252E54 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #252E54 text on white | 13.14:1 | AAA | Lc 99.4 | Preferred for body text |
| #252E54 text on black | 1.59:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#AEBEF6
oklch(80.9% 0.081 272.1)
-
Step 400
400
#849AF2
oklch(70.6% 0.131 272)
-
Step 500
500
#677FED
oklch(63.2% 0.166 271.6)
-
Step 600
600
#5165DC
oklch(55.7% 0.182 272)
-
Step 700
700
#4253BF
oklch(49.2% 0.169 271.9)
-
Step 800
800
#36459A
oklch(42.8% 0.139 271.7)
-
Step 900
900
#2E3B7B
oklch(37.8% 0.109 271.6)
-
Step 950
950 (this color)
#252E54
oklch(31.3% 0.069 271.8)
#252E54 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) | #1F3255 | 0.014 |
| Deuteranopia (no green cones) | #1A2E53 | 0.015 |
| Tritanopia (no blue cones) | #10363C | 0.062 |
| Achromatopsia (no color) | #303030 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252E54
#252E54
oklch(31.3% 0.069 271.8)
- #3D3000
#3D3000
oklch(31.5% 0.064 92.4)
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 #252E54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.022
- Space Cadet #2B2D42 ΔE 0.033
- Marine #042E60 ΔE 0.038
- Gunmetal #293241 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.047
- Marine Blue #01386A ΔE 0.050
- Oxford Blue #1B263B ΔE 0.052
- Midnight Green #073B4C ΔE 0.053
Use #252E54 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.