#425178
Closest named color: Dusk (#4E5481). oklch(44% 0.067 267.5), rgb(66, 81, 120).
Aa
White text reads best on this color (7.83:1).
About this color
#425178 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.067 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.025 away. White text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.67:1 |
| White text | 7.83:1 |
Values
| HEX | #425178 |
| RGB | rgb(66, 81, 120) |
| HSL | hsl(223, 29%, 36%) |
| OKLCH | oklch(44% 0.067 267.5) |
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 #425178 | 7.83:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #425178 | 2.67:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #425178 text on white | 7.83:1 | AAA | Lc 87.1 | Fine for body text |
| #425178 text on black | 2.67:1 | Fails | Lc -15.0 | Not readable |
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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D3D9E8
oklch(88.5% 0.022 268.4)
-
Step 300
300
#B5C0DB
oklch(80.8% 0.04 267.9)
-
Step 400
400
#8FA0C9
oklch(70.7% 0.063 267.2)
-
Step 500
500
#7488BB
oklch(63.1% 0.081 267.6)
-
Step 600
600
#5D71A7
oklch(55.6% 0.088 268)
-
Step 700
700
#4C5F8F
oklch(49.1% 0.081 267)
-
Step 800
800 (this color)
#425178
oklch(44% 0.067 267.5)
-
Step 900
900
#35415E
oklch(37.8% 0.052 266.7)
-
Step 950
950
#1F2637
oklch(27% 0.033 266.9)
#425178 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) | #43547A | 0.009 |
| Deuteranopia (no green cones) | #3E5077 | 0.007 |
| Tritanopia (no blue cones) | #2F595F | 0.060 |
| Achromatopsia (no color) | #525252 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425178
#425178
oklch(44% 0.067 267.5)
- #625023
#625023
oklch(44% 0.067 87.6)
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 #425178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.025
- YInMn Blue #415A77 ΔE 0.028
- Dusty Grape #545775 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.037
- Twilight #4E518B ΔE 0.037
- Dusk Blue #26538D ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.046
- Light Navy #155084 ΔE 0.048
Use #425178 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.