#425783
Closest named color: Dusk (#4E5481). oklch(46% 0.077 264.1), rgb(66, 87, 131).
Aa
White text reads best on this color (7.18:1).
About this color
#425783 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.077 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.018 away. White text reads best on it, at 7.18:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #425783 |
| RGB | rgb(66, 87, 131) |
| HSL | hsl(221, 33%, 39%) |
| OKLCH | oklch(46% 0.077 264.1) |
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 #425783 | 7.18:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #425783 | 2.92:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #425783 text on white | 7.18:1 | AAA | Lc 84.9 | Fine for body text |
| #425783 text on black | 2.92:1 | Fails | Lc -17.1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2D9E7
oklch(88.4% 0.021 264.5)
-
Step 300
300
#B5C1D9
oklch(80.9% 0.036 264.3)
-
Step 400
400
#8EA1C6
oklch(70.7% 0.058 263.6)
-
Step 500
500
#7289B8
oklch(63% 0.076 264.2)
-
Step 600
600
#5B73A4
oklch(55.7% 0.082 263.9)
-
Step 700
700 (this color)
#425783
oklch(46% 0.077 264.1)
-
Step 800
800
#3D4E72
oklch(42.6% 0.064 264.5)
-
Step 900
900
#34415C
oklch(37.6% 0.05 264.3)
-
Step 950
950
#1F2636
oklch(26.9% 0.032 266.1)
#425783 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) | #465B85 | 0.014 |
| Deuteranopia (no green cones) | #3F5582 | 0.008 |
| Tritanopia (no blue cones) | #276067 | 0.068 |
| Achromatopsia (no color) | #575757 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425783
#425783
oklch(46% 0.077 264.1)
- #6C541F
#6C541F
oklch(46% 0.077 84.2)
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 #425783, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.018
- Light Navy Blue #2E5A88 ΔE 0.023
- YInMn Blue #415A77 ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.025
- Twilight #4E518B ΔE 0.029
- Dusty Grape #545775 ΔE 0.033
- Dusky Blue #475F94 ΔE 0.034
- Denim #3B638C ΔE 0.035
Use #425783 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.