#25435D
Closest named color: Dark Grey Blue (#29465B). oklch(37.2% 0.058 246.3), rgb(37, 67, 93).
Aa
White text reads best on this color (10.29:1).
About this color
#25435D is a dark, muted blue. In OKLCH its lightness is 37%, 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 0.013 away. White text reads best on it, at 10.29:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #25435D |
| RGB | rgb(37, 67, 93) |
| HSL | hsl(208, 43%, 25%) |
| OKLCH | oklch(37.2% 0.058 246.3) |
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 #25435D | 10.29:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #25435D | 2.03:1 | Fails | Lc 10.1 | Not readable |
| #25435D text on white | 10.29:1 | AAA | Lc 93.8 | Preferred for body text |
| #25435D text on black | 2.03:1 | Fails | Lc -8.7 | 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
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ABC4DB
oklch(80.9% 0.042 246.1)
-
Step 400
400
#7DA5CA
oklch(70.6% 0.07 246.9)
-
Step 500
500
#5B8FBC
oklch(63.2% 0.088 245.9)
-
Step 600
600
#4078A8
oklch(55.6% 0.096 246.5)
-
Step 700
700
#316590
oklch(49.1% 0.089 245.9)
-
Step 800
800
#2A5275
oklch(42.6% 0.074 247)
-
Step 900
900 (this color)
#25435D
oklch(37.2% 0.058 246.3)
-
Step 950
950
#172837
oklch(26.9% 0.036 246.3)
#25435D 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) | #38445E | 0.025 |
| Deuteranopia (no green cones) | #313E5D | 0.020 |
| Tritanopia (no blue cones) | #00494C | 0.048 |
| Achromatopsia (no color) | #404040 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25435D
#25435D
oklch(37.2% 0.058 246.3)
- #553A1D
#553A1D
oklch(37.3% 0.058 66.4)
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 #25435D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.013
- Charcoal #264653 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.047
- Midnight Green #073B4C ΔE 0.047
- Onyx #343A40 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.052
- Twilight Blue #0A437A ΔE 0.052
Use #25435D 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.