#425F83
Closest named color: Denim (#3B638C). oklch(47.9% 0.068 254.3), rgb(66, 95, 131).
Aa
White text reads best on this color (6.57:1).
About this color
#425F83 is a medium-dark, muted blue. In OKLCH its lightness is 48%, its chroma 0.068 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.017 away. White text reads best on it, at 6.57:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #425F83 |
| RGB | rgb(66, 95, 131) |
| HSL | hsl(213, 33%, 39%) |
| OKLCH | oklch(47.9% 0.068 254.3) |
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 #425F83 | 6.57:1 | AA | Lc -87.5 | Fine for body text |
| Black text on #425F83 | 3.19:1 | AA large text | Lc 21.6 | Dividers and decoration only |
| #425F83 text on white | 6.57:1 | AA | Lc 82.4 | Fine for body text |
| #425F83 text on black | 3.19:1 | AA large text | Lc -19.5 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B3C2D6
oklch(80.9% 0.033 255.6)
-
Step 400
400
#8BA3C1
oklch(70.8% 0.052 254.2)
-
Step 500
500
#6D8CB2
oklch(63.1% 0.068 253.9)
-
Step 600
600
#55759E
oklch(55.5% 0.074 255)
-
Step 700
700 (this color)
#425F83
oklch(47.9% 0.068 254.3)
-
Step 800
800
#39516D
oklch(42.8% 0.055 252.9)
-
Step 900
900
#314359
oklch(37.7% 0.044 253.8)
-
Step 950
950
#1D2734
oklch(26.9% 0.028 255.2)
#425F83 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) | #516185 | 0.021 |
| Deuteranopia (no green cones) | #495A82 | 0.016 |
| Tritanopia (no blue cones) | #26676B | 0.060 |
| Achromatopsia (no color) | #5D5D5D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425F83
#425F83
oklch(47.9% 0.068 254.3)
- #74572F
#74572F
oklch(47.8% 0.068 73.8)
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 #425F83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.017
- YInMn Blue #415A77 ΔE 0.022
- Dusky Blue #475F94 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.031
- Dusk #4E5481 ΔE 0.034
- Dusty Grape #545775 ΔE 0.034
- Slate #516572 ΔE 0.042
Use #425F83 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.