#425E91
Closest named color: Dusky Blue (#475F94). oklch(48.4% 0.089 261.7), rgb(66, 94, 145).
Aa
White text reads best on this color (6.47:1).
About this color
#425E91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.089 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.009 away. White text reads best on it, at 6.47:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.24:1 |
| White text | 6.47:1 |
Values
| HEX | #425E91 |
| RGB | rgb(66, 94, 145) |
| HSL | hsl(219, 37%, 41%) |
| OKLCH | oklch(48.4% 0.089 261.7) |
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 #425E91 | 6.47:1 | AA | Lc -87.1 | Fine for body text |
| Black text on #425E91 | 3.24:1 | AA large text | Lc 22.0 | Dividers and decoration only |
| #425E91 text on white | 6.47:1 | AA | Lc 82.0 | Fine for body text |
| #425E91 text on black | 3.24:1 | AA large text | Lc -19.9 | 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 700.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE9
oklch(88.6% 0.023 260.7)
-
Step 300
300
#B1C1DD
oklch(80.8% 0.043 261.7)
-
Step 400
400
#89A1CC
oklch(70.6% 0.069 261.9)
-
Step 500
500
#6C8ABF
oklch(63.2% 0.087 261.4)
-
Step 600
600
#5473AC
oklch(55.7% 0.096 261.9)
-
Step 700
700 (this color)
#425E91
oklch(48.4% 0.089 261.7)
-
Step 800
800
#384F77
oklch(42.8% 0.073 261)
-
Step 900
900
#304160
oklch(37.5% 0.058 261.9)
-
Step 950
950
#1C2638
oklch(26.8% 0.037 261.8)
#425E91 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) | #4A6293 | 0.016 |
| Deuteranopia (no green cones) | #405B90 | 0.009 |
| Tritanopia (no blue cones) | #186971 | 0.079 |
| Achromatopsia (no color) | #5E5E5E | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425E91
#425E91
oklch(48.4% 0.089 261.7)
- #785917
#785917
oklch(48.4% 0.09 81.8)
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 #425E91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.009
- Denim Blue #3B5B92 ΔE 0.013
- Denim #3B638C ΔE 0.020
- Light Navy Blue #2E5A88 ΔE 0.030
- Dusk #4E5481 ΔE 0.036
- Twilight #4E518B ΔE 0.038
- YInMn Blue #415A77 ΔE 0.042
- Peacock Blue #016795 ΔE 0.045
Use #425E91 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.