#25396D
Closest named color: Marine Blue (#01386A). oklch(35.7% 0.094 266), rgb(37, 57, 109).
Aa
White text reads best on this color (11.14:1).
About this color
#25396D is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.094 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.030 away. White text reads best on it, at 11.14:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.88:1 |
| White text | 11.14:1 |
Values
| HEX | #25396D |
| RGB | rgb(37, 57, 109) |
| HSL | hsl(223, 49%, 29%) |
| OKLCH | oklch(35.7% 0.094 266) |
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 #25396D | 11.14:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #25396D | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #25396D text on white | 11.14:1 | AAA | Lc 95.5 | Preferred for body text |
| #25396D text on black | 1.88:1 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CDD9F4
oklch(88.5% 0.039 266.5)
-
Step 300
300
#ABC0EF
oklch(80.8% 0.071 266)
-
Step 400
400
#809EE7
oklch(70.6% 0.113 266.5)
-
Step 500
500
#6085E0
oklch(63.2% 0.143 265.8)
-
Step 600
600
#486CCE
oklch(55.6% 0.157 266.2)
-
Step 700
700
#395AB2
oklch(49.1% 0.145 265.8)
-
Step 800
800
#304A90
oklch(42.7% 0.12 266.1)
-
Step 900
900 (this color)
#25396D
oklch(35.7% 0.094 266)
-
Step 950
950
#192543
oklch(27% 0.058 266.1)
#25396D 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) | #203F6F | 0.018 |
| Deuteranopia (no green cones) | #14386C | 0.018 |
| Tritanopia (no blue cones) | #00454D | 0.080 |
| Achromatopsia (no color) | #3B3B3B | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25396D
#25396D
oklch(35.7% 0.094 266)
- #4D3900
#4D3900
oklch(35.7% 0.073 86.5)
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 #25396D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.030
- Twilight Blue #0A437A ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.041
- Marine #042E60 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.060
- Cobalt #1E488F ΔE 0.067
- Midnight Green #073B4C ΔE 0.068
Use #25396D 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.