#425381
Closest named color: Dusk (#4E5481). oklch(44.9% 0.079 267.8), rgb(66, 83, 129).
Aa
White text reads best on this color (7.53:1).
About this color
#425381 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.079 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.018 away. White text reads best on it, at 7.53:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #425381 |
| RGB | rgb(66, 83, 129) |
| HSL | hsl(224, 32%, 38%) |
| OKLCH | oklch(44.9% 0.079 267.8) |
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 #425381 | 7.53:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #425381 | 2.78:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #425381 text on white | 7.53:1 | AAA | Lc 86.1 | Fine for body text |
| #425381 text on black | 2.78:1 | Fails | Lc -15.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B4C0DF
oklch(80.9% 0.046 268.6)
-
Step 400
400
#8D9FCF
oklch(70.6% 0.073 268.5)
-
Step 500
500
#7187C3
oklch(63.1% 0.094 268.2)
-
Step 600
600
#5970AF
oklch(55.5% 0.102 267.8)
-
Step 700
700
#495E97
oklch(49.2% 0.095 267.5)
-
Step 800
800 (this color)
#425381
oklch(44.9% 0.079 267.8)
-
Step 900
900
#334062
oklch(37.6% 0.061 267.5)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#425381 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) | #425783 | 0.012 |
| Deuteranopia (no green cones) | #3B5280 | 0.010 |
| Tritanopia (no blue cones) | #295D64 | 0.071 |
| Achromatopsia (no color) | #545454 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425381
#425381
oklch(44.9% 0.079 267.8)
- #675219
#675219
oklch(44.9% 0.078 88.1)
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 #425381, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.018
- Twilight #4E518B ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.028
- YInMn Blue #415A77 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.032
- Dusk Blue #26538D ΔE 0.036
- Dusty Grape #545775 ΔE 0.037
- Dusky Blue #475F94 ΔE 0.043
Use #425381 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.