#25425E
Closest named color: Dark Grey Blue (#29465B). oklch(37% 0.06 248.9), rgb(37, 66, 94).
Aa
White text reads best on this color (10.39:1).
About this color
#25425E is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.060 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.016 away. White text reads best on it, at 10.39:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.01:1 |
| White text | 10.39:1 |
Values
| HEX | #25425E |
| RGB | rgb(37, 66, 94) |
| HSL | hsl(209, 44%, 26%) |
| OKLCH | oklch(37% 0.06 248.9) |
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 #25425E | 10.39:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #25425E | 2.01:1 | Fails | Lc 9.9 | Not readable |
| #25425E text on white | 10.39:1 | AAA | Lc 94.0 | Preferred for body text |
| #25425E text on black | 2.01:1 | Fails | Lc -8.5 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CDDBE9
oklch(88.5% 0.025 248.1)
-
Step 300
300
#ABC4DD
oklch(81% 0.045 248.4)
-
Step 400
400
#7EA5CC
oklch(70.8% 0.072 248.9)
-
Step 500
500
#5C8EBF
oklch(63.2% 0.092 249)
-
Step 600
600
#4177AB
oklch(55.5% 0.1 249.2)
-
Step 700
700
#326493
oklch(49.1% 0.093 249)
-
Step 800
800
#2A5277
oklch(42.7% 0.077 248.4)
-
Step 900
900 (this color)
#25425E
oklch(37% 0.06 248.9)
-
Step 950
950
#172838
oklch(27% 0.038 247.9)
#25425E 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) | #36435F | 0.023 |
| Deuteranopia (no green cones) | #2F3D5D | 0.018 |
| Tritanopia (no blue cones) | #00494C | 0.051 |
| Achromatopsia (no color) | #404040 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25425E
#25425E
oklch(37% 0.06 248.9)
- #543919
#543919
oklch(36.9% 0.06 68.6)
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 #25425E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.016
- Charcoal #264653 ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.044
- Midnight Green #073B4C ΔE 0.047
- Twilight Blue #0A437A ΔE 0.050
- Marine Blue #01386A ΔE 0.052
- Onyx #343A40 ΔE 0.053
Use #25425E 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.