#25445E
Closest named color: Dark Grey Blue (#29465B). oklch(37.5% 0.058 245.5), rgb(37, 68, 94).
Aa
White text reads best on this color (10.15:1).
About this color
#25445E is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.058 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.011 away. White text reads best on it, at 10.15:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #25445E |
| RGB | rgb(37, 68, 94) |
| HSL | hsl(207, 44%, 26%) |
| OKLCH | oklch(37.5% 0.058 245.5) |
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 #25445E | 10.15:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #25445E | 2.06:1 | Fails | Lc 10.5 | Not readable |
| #25445E text on white | 10.15:1 | AAA | Lc 93.5 | Preferred for body text |
| #25445E text on black | 2.06:1 | Fails | Lc -9.0 | 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
#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
#AAC4DC
oklch(80.9% 0.044 246.2)
-
Step 400
400
#7CA6CA
oklch(70.8% 0.07 244.9)
-
Step 500
500
#5A8FBC
oklch(63.1% 0.089 245.4)
-
Step 600
600
#3E78A8
oklch(55.5% 0.097 245.7)
-
Step 700
700
#2F6590
oklch(49% 0.09 245.2)
-
Step 800
800
#285375
oklch(42.8% 0.074 244.7)
-
Step 900
900 (this color)
#25445E
oklch(37.5% 0.058 245.5)
-
Step 950
950
#172837
oklch(26.9% 0.036 246.3)
#25445E 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) | #39455F | 0.027 |
| Deuteranopia (no green cones) | #313F5E | 0.020 |
| Tritanopia (no blue cones) | #004A4D | 0.048 |
| Achromatopsia (no color) | #414141 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25445E
#25445E
oklch(37.5% 0.058 245.5)
- #563A1D
#563A1D
oklch(37.4% 0.058 65.3)
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 #25445E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.011
- Charcoal #264653 ΔE 0.022
- Dark Blue Grey #1F3B4D ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.050
- Midnight Green #073B4C ΔE 0.050
- Twilight Blue #0A437A ΔE 0.052
- Dark Teal #014D4E ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.052
Use #25445E 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.