#425866
Closest named color: YInMn Blue (#415A77). oklch(44.8% 0.035 236.5), rgb(66, 88, 102).
Aa
White text reads best on this color (7.44:1).
About this color
#425866 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.035 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.81:1 |
| White text | 7.44:1 |
Values
| HEX | #425866 |
| RGB | rgb(66, 88, 102) |
| HSL | hsl(203, 21%, 33%) |
| OKLCH | oklch(44.8% 0.035 236.5) |
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 #425866 | 7.44:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #425866 | 2.81:1 | Fails | Lc 18.2 | Dividers and decoration only |
| #425866 text on white | 7.44:1 | AAA | Lc 85.9 | Fine for body text |
| #425866 text on black | 2.81:1 | Fails | Lc -16.2 | Dividers and decoration only |
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 800.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B5C3CC
oklch(80.9% 0.02 235.8)
-
Step 400
400
#8EA4B3
oklch(70.7% 0.033 237.8)
-
Step 500
500
#728EA0
oklch(63.2% 0.042 236.5)
-
Step 600
600
#5A788B
oklch(55.7% 0.045 236.5)
-
Step 700
700
#496576
oklch(49.1% 0.043 235.4)
-
Step 800
800 (this color)
#425866
oklch(44.8% 0.035 236.5)
-
Step 900
900
#34444E
oklch(37.7% 0.027 235.9)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#425866 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) | #525767 | 0.023 |
| Deuteranopia (no green cones) | #4D5366 | 0.021 |
| Tritanopia (no blue cones) | #365C5C | 0.028 |
| Achromatopsia (no color) | #555555 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425866
#425866
oklch(44.8% 0.035 236.5)
- #645042
#645042
oklch(44.8% 0.035 56.7)
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 #425866, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Dusty Grape #545775 ΔE 0.038
- Slate #516572 ΔE 0.047
- Petrol #005F6A ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.052
- Dusk #4E5481 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.060
Use #425866 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.