#425DA5
Closest named color: Dusky Blue (#475F94). oklch(49.4% 0.12 266.6), rgb(66, 93, 165).
Aa
White text reads best on this color (6.28:1).
About this color
#425DA5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.120 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.030 away. White text reads best on it, at 6.28:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #425DA5 |
| RGB | rgb(66, 93, 165) |
| HSL | hsl(224, 43%, 45%) |
| OKLCH | oklch(49.4% 0.12 266.6) |
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 #425DA5 | 6.28:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #425DA5 | 3.34:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #425DA5 text on white | 6.28:1 | AA | Lc 81.1 | Fine for body text |
| #425DA5 text on black | 3.34:1 | AA large text | Lc -20.8 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#AFC0E7
oklch(80.8% 0.058 266.6)
-
Step 400
400
#869FDB
oklch(70.7% 0.093 266.7)
-
Step 500
500
#6886D1
oklch(63% 0.119 266.5)
-
Step 600
600
#516FBE
oklch(55.7% 0.128 266.6)
-
Step 700
700 (this color)
#425DA5
oklch(49.4% 0.12 266.6)
-
Step 800
800
#364C85
oklch(42.8% 0.099 266.4)
-
Step 900
900
#2F3F6B
oklch(37.6% 0.078 267.5)
-
Step 950
950
#1B253E
oklch(26.8% 0.049 266.6)
#425DA5 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) | #3D65A8 | 0.022 |
| Deuteranopia (no green cones) | #2F5CA3 | 0.021 |
| Tritanopia (no blue cones) | #006D79 | 0.104 |
| Achromatopsia (no color) | #606060 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425DA5
#425DA5
oklch(49.4% 0.12 266.6)
- #7A5C00
#7A5C00
oklch(49.2% 0.101 86.4)
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 #425DA5, closest first.
No curated palette has a color within ΔE 0.04 of #425DA5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.032
- French Blue #436BAD ΔE 0.039
- Mid Blue #276AB3 ΔE 0.042
- Denim #3B638C ΔE 0.048
- Twilight #4E518B ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.054
- Dusk Blue #26538D ΔE 0.058
Use #425DA5 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.