#25396A
Closest named color: Marine Blue (#01386A). oklch(35.5% 0.089 265.4), rgb(37, 57, 106).
Aa
White text reads best on this color (11.21:1).
About this color
#25396A is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.089 and its hue 265°. 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 11.21:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.87:1 |
| White text | 11.21:1 |
Values
| HEX | #25396A |
| RGB | rgb(37, 57, 106) |
| HSL | hsl(223, 48%, 28%) |
| OKLCH | oklch(35.5% 0.089 265.4) |
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 #25396A | 11.21:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #25396A | 1.87:1 | Fails | Lc 8.2 | Not readable |
| #25396A text on white | 11.21:1 | AAA | Lc 95.7 | Preferred for body text |
| #25396A text on black | 1.87:1 | 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
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CDD9F2
oklch(88.4% 0.037 265.1)
-
Step 300
300
#ACC0ED
oklch(80.8% 0.068 266.1)
-
Step 400
400
#809FE4
oklch(70.7% 0.107 265.3)
-
Step 500
500
#6186DC
oklch(63.2% 0.136 265.2)
-
Step 600
600
#496DC9
oklch(55.5% 0.148 265.7)
-
Step 700
700
#3A5BAE
oklch(49.1% 0.138 265.3)
-
Step 800
800
#304B8D
oklch(42.8% 0.114 265.2)
-
Step 900
900 (this color)
#25396A
oklch(35.5% 0.089 265.4)
-
Step 950
950
#192542
oklch(27% 0.057 265.8)
#25396A 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) | #223E6C | 0.015 |
| Deuteranopia (no green cones) | #183869 | 0.015 |
| Tritanopia (no blue cones) | #00444C | 0.076 |
| Achromatopsia (no color) | #3B3B3B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25396A
#25396A
oklch(35.5% 0.089 265.4)
- #4D3800
#4D3800
oklch(35.5% 0.073 85)
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 #25396A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.036
- Twilight Blue #0A437A ΔE 0.039
- Marine #042E60 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.054
- Dark Blue Grey #1F3B4D ΔE 0.054
- Midnight Green #073B4C ΔE 0.063
- Charcoal #264653 ΔE 0.065
Use #25396A 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.