#425183
Closest named color: Dusk (#4E5481). oklch(44.6% 0.084 270.1), rgb(66, 81, 131).
Aa
White text reads best on this color (7.67:1).
About this color
#425183 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.084 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.021 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #425183 |
| RGB | rgb(66, 81, 131) |
| HSL | hsl(226, 33%, 39%) |
| OKLCH | oklch(44.6% 0.084 270.1) |
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 #425183 | 7.67:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #425183 | 2.73:1 | Fails | Lc 17.4 | Dividers and decoration only |
| #425183 text on white | 7.67:1 | AAA | Lc 86.6 | Fine for body text |
| #425183 text on black | 2.73:1 | Fails | Lc -15.5 | 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 800.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D2D9EC
oklch(88.6% 0.027 269.6)
-
Step 300
300
#B4C0E1
oklch(80.9% 0.049 269.5)
-
Step 400
400
#8D9FD3
oklch(70.8% 0.079 269.6)
-
Step 500
500
#7286C7
oklch(63.1% 0.101 270.3)
-
Step 600
600
#5A6FB4
oklch(55.6% 0.11 269.8)
-
Step 700
700
#4A5C9A
oklch(49% 0.102 270.1)
-
Step 800
800 (this color)
#425183
oklch(44.6% 0.084 270.1)
-
Step 900
900
#343F65
oklch(37.6% 0.067 270.7)
-
Step 950
950
#1E253B
oklch(26.9% 0.042 269.9)
#425183 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) | #3E5685 | 0.015 |
| Deuteranopia (no green cones) | #385182 | 0.013 |
| Tritanopia (no blue cones) | #285C64 | 0.076 |
| Achromatopsia (no color) | #535353 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425183
#425183
oklch(44.6% 0.084 270.1)
- #66510F
#66510F
oklch(44.5% 0.084 89.7)
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 #425183, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.021
- Twilight #4E518B ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.032
- Dusk Blue #26538D ΔE 0.033
- Denim Blue #3B5B92 ΔE 0.034
- YInMn Blue #415A77 ΔE 0.038
- Dusty Grape #545775 ΔE 0.043
- Light Navy #155084 ΔE 0.045
Use #425183 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.