#25354E
Closest named color: Prussian Blue (#1D3557). oklch(32.7% 0.05 259.1), rgb(37, 53, 78).
Aa
White text reads best on this color (12.36:1).
About this color
#25354E is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.050 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.018 away. White text reads best on it, at 12.36:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.69:1 |
| White text | 12.36:1 |
Values
| HEX | #25354E |
| RGB | rgb(37, 53, 78) |
| HSL | hsl(217, 36%, 23%) |
| OKLCH | oklch(32.7% 0.05 259.1) |
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 #25354E | 12.36:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #25354E | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #25354E text on white | 12.36:1 | AAA | Lc 98.1 | Preferred for body text |
| #25354E text on black | 1.69:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B3C2D9
oklch(81% 0.036 258.9)
-
Step 400
400
#8BA2C6
oklch(70.7% 0.059 259.3)
-
Step 500
500
#6E8BB8
oklch(63.2% 0.076 259)
-
Step 600
600
#5674A4
oklch(55.6% 0.083 259.5)
-
Step 700
700
#46618C
oklch(49% 0.077 259.4)
-
Step 800
800
#3A5072
oklch(42.9% 0.063 258.9)
-
Step 900
900 (this color)
#25354E
oklch(32.7% 0.05 259.1)
-
Step 950
950
#1D2736
oklch(27% 0.031 258.3)
#25354E 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) | #2C374F | 0.013 |
| Deuteranopia (no green cones) | #27334D | 0.007 |
| Tritanopia (no blue cones) | #143A3E | 0.043 |
| Achromatopsia (no color) | #343434 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25354E
#25354E
oklch(32.7% 0.05 259.1)
- #423115
#423115
oklch(32.6% 0.049 78.1)
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 #25354E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.021
- Gunmetal #293241 ΔE 0.023
- Space Cadet #2B2D42 ΔE 0.029
- Midnight Green #073B4C ΔE 0.032
- Onyx #343A40 ΔE 0.041
- Marine #042E60 ΔE 0.054
- Marine Blue #01386A ΔE 0.054
Use #25354E 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.