#425F85
Closest named color: Denim (#3B638C). oklch(48% 0.071 255.5), rgb(66, 95, 133).
Aa
White text reads best on this color (6.54:1).
About this color
#425F85 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.071 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.015 away. White text reads best on it, at 6.54:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.20:1 |
| White text | 6.54:1 |
Values
| HEX | #425F85 |
| RGB | rgb(66, 95, 133) |
| HSL | hsl(214, 34%, 39%) |
| OKLCH | oklch(48% 0.071 255.5) |
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 #425F85 | 6.54:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #425F85 | 3.20:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #425F85 text on white | 6.54:1 | AA | Lc 82.3 | Fine for body text |
| #425F85 text on black | 3.20:1 | AA large text | Lc -19.6 | 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
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B2C2D7
oklch(80.9% 0.035 255.2)
-
Step 400
400
#8AA3C3
oklch(70.8% 0.055 254.7)
-
Step 500
500
#6D8CB4
oklch(63.2% 0.07 255)
-
Step 600
600
#5575A0
oklch(55.6% 0.077 256)
-
Step 700
700 (this color)
#425F85
oklch(48% 0.071 255.5)
-
Step 800
800
#39506F
oklch(42.6% 0.059 256.1)
-
Step 900
900
#31435A
oklch(37.8% 0.046 254.9)
-
Step 950
950
#1D2735
oklch(27% 0.03 256.9)
#425F85 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) | #506187 | 0.020 |
| Deuteranopia (no green cones) | #485A84 | 0.015 |
| Tritanopia (no blue cones) | #24676C | 0.062 |
| Achromatopsia (no color) | #5D5D5D | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425F85
#425F85
oklch(48% 0.071 255.5)
- #75582D
#75582D
oklch(48.1% 0.071 75.5)
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 #425F85, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.015
- YInMn Blue #415A77 ΔE 0.025
- Dusky Blue #475F94 ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.029
- Dusk #4E5481 ΔE 0.033
- Dusty Grape #545775 ΔE 0.036
- Slate #516572 ΔE 0.045
Use #425F85 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.