#425E8D
Closest named color: Dusky Blue (#475F94). oklch(48.1% 0.083 260.4), rgb(66, 94, 141).
Aa
White text reads best on this color (6.52:1).
About this color
#425E8D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.083 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.013 away. White text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.21:1 |
| White text | 6.52:1 |
Values
| HEX | #425E8D |
| RGB | rgb(66, 94, 141) |
| HSL | hsl(218, 36%, 41%) |
| OKLCH | oklch(48.1% 0.083 260.4) |
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 #425E8D | 6.52:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #425E8D | 3.21:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #425E8D text on white | 6.52:1 | AA | Lc 82.2 | Fine for body text |
| #425E8D text on black | 3.21:1 | AA large text | Lc -19.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#D1DAE8
oklch(88.6% 0.022 259.2)
-
Step 300
300
#B2C2DB
oklch(81% 0.04 259.3)
-
Step 400
400
#8AA2C9
oklch(70.8% 0.063 260)
-
Step 500
500
#6C8ABC
oklch(63.1% 0.083 260.4)
-
Step 600
600
#5474A8
oklch(55.7% 0.089 259.8)
-
Step 700
700 (this color)
#425E8D
oklch(48.1% 0.083 260.4)
-
Step 800
800
#394F75
oklch(42.7% 0.069 260.9)
-
Step 900
900
#31425E
oklch(37.7% 0.053 260.1)
-
Step 950
950
#1D2737
oklch(27.1% 0.033 259.6)
#425E8D 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) | #4C618F | 0.017 |
| Deuteranopia (no green cones) | #435A8C | 0.011 |
| Tritanopia (no blue cones) | #1D686F | 0.074 |
| Achromatopsia (no color) | #5E5E5E | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425E8D
#425E8D
oklch(48.1% 0.083 260.4)
- #76581F
#76581F
oklch(48% 0.083 80.3)
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 #425E8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.013
- Denim Blue #3B5B92 ΔE 0.016
- Denim #3B638C ΔE 0.016
- Light Navy Blue #2E5A88 ΔE 0.028
- Dusk #4E5481 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.036
- Twilight #4E518B ΔE 0.038
- Dusty Grape #545775 ΔE 0.044
Use #425E8D 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.