#252F62
Closest named color: Prussian Blue (#1D3557). oklch(32.6% 0.09 272.1), rgb(37, 47, 98).
Aa
White text reads best on this color (12.63:1).
About this color
#252F62 is a dark, moderately saturated blue. In OKLCH its lightness is 33%, its chroma 0.090 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.030 away. White text reads best on it, at 12.63:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #252F62 |
| RGB | rgb(37, 47, 98) |
| HSL | hsl(230, 45%, 26%) |
| OKLCH | oklch(32.6% 0.09 272.1) |
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 #252F62 | 12.63:1 | AAA | Lc -101.8 | Preferred for body text |
| Black text on #252F62 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #252F62 text on white | 12.63:1 | AAA | Lc 98.5 | Preferred for body text |
| #252F62 text on black | 1.66:1 | 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 900.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D0D8F3
oklch(88.5% 0.038 272.5)
-
Step 300
300
#B1BFED
oklch(81% 0.067 271.6)
-
Step 400
400
#899CE5
oklch(70.7% 0.109 272.2)
-
Step 500
500
#6D82DD
oklch(63.2% 0.139 272.1)
-
Step 600
600
#5669CA
oklch(55.5% 0.151 272.3)
-
Step 700
700
#4757AF
oklch(49.1% 0.14 272.5)
-
Step 800
800
#3A488E
oklch(42.8% 0.116 272.1)
-
Step 900
900 (this color)
#252F62
oklch(32.6% 0.09 272.1)
-
Step 950
950
#1D2442
oklch(27% 0.057 272.2)
#252F62 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) | #153664 | 0.025 |
| Deuteranopia (no green cones) | #0B3061 | 0.027 |
| Tritanopia (no blue cones) | #003B43 | 0.082 |
| Achromatopsia (no color) | #333333 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #252F62
#252F62
oklch(32.6% 0.09 272.1)
- #413300
#413300
oklch(32.7% 0.067 91.9)
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 #252F62, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.030
- Marine #042E60 ΔE 0.034
- Marine Blue #01386A ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.059
- Gunmetal #293241 ΔE 0.063
- Midnight Blue #191970 ΔE 0.065
- Midnight Green #073B4C ΔE 0.066
Use #252F62 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.