#25345F
Closest named color: Prussian Blue (#1D3557). oklch(33.5% 0.078 267.6), rgb(37, 52, 95).
Aa
White text reads best on this color (12.10:1).
About this color
#25345F is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.078 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 12.10:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.73:1 |
| White text | 12.10:1 |
Values
| HEX | #25345F |
| RGB | rgb(37, 52, 95) |
| HSL | hsl(224, 44%, 26%) |
| OKLCH | oklch(33.5% 0.078 267.6) |
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 #25345F | 12.10:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #25345F | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #25345F text on white | 12.10:1 | AAA | Lc 97.5 | Preferred for body text |
| #25345F text on black | 1.73:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F0
oklch(88.6% 0.033 268.7)
-
Step 300
300
#B0C0E8
oklch(80.9% 0.059 267.9)
-
Step 400
400
#879FDC
oklch(70.8% 0.094 267.5)
-
Step 500
500
#6A86D2
oklch(63.2% 0.119 267.6)
-
Step 600
600
#526EBF
oklch(55.6% 0.13 267.7)
-
Step 700
700
#425CA5
oklch(49.1% 0.121 267.1)
-
Step 800
800
#374B86
oklch(42.7% 0.101 267.9)
-
Step 900
900 (this color)
#25345F
oklch(33.5% 0.078 267.6)
-
Step 950
950
#1C253F
oklch(27% 0.05 268.4)
#25345F 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) | #213961 | 0.015 |
| Deuteranopia (no green cones) | #1A335E | 0.014 |
| Tritanopia (no blue cones) | #003D44 | 0.070 |
| Achromatopsia (no color) | #363636 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25345F
#25345F
oklch(33.5% 0.078 267.6)
- #463400
#463400
oklch(33.6% 0.069 87.2)
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 #25345F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Marine Blue #01386A ΔE 0.033
- Marine #042E60 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.052
- Midnight Green #073B4C ΔE 0.053
- Gunmetal #293241 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.059
Use #25345F 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.