#425379
Closest named color: YInMn Blue (#415A77). oklch(44.5% 0.066 265.4), rgb(66, 83, 121).
Aa
White text reads best on this color (7.65:1).
About this color
#425379 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.066 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.022 away. White text reads best on it, at 7.65:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.74:1 |
| White text | 7.65:1 |
Values
| HEX | #425379 |
| RGB | rgb(66, 83, 121) |
| HSL | hsl(221, 29%, 37%) |
| OKLCH | oklch(44.5% 0.066 265.4) |
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 #425379 | 7.65:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #425379 | 2.74:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #425379 text on white | 7.65:1 | AAA | Lc 86.5 | Fine for body text |
| #425379 text on black | 2.74:1 | Fails | Lc -15.6 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D2D9E8
oklch(88.4% 0.022 265.8)
-
Step 300
300
#B5C1DB
oklch(81% 0.039 265.8)
-
Step 400
400
#8EA0C8
oklch(70.6% 0.062 265.9)
-
Step 500
500
#7289BA
oklch(63.1% 0.079 264.8)
-
Step 600
600
#5B72A6
oklch(55.6% 0.086 265.5)
-
Step 700
700
#4B5F8F
oklch(49.1% 0.081 266.2)
-
Step 800
800 (this color)
#425379
oklch(44.5% 0.066 265.4)
-
Step 900
900
#34415D
oklch(37.7% 0.051 264.9)
-
Step 950
950
#1F2637
oklch(27% 0.033 266.9)
#425379 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) | #45567B | 0.010 |
| Deuteranopia (no green cones) | #405178 | 0.007 |
| Tritanopia (no blue cones) | #2E5B60 | 0.060 |
| Achromatopsia (no color) | #535353 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425379
#425379
oklch(44.5% 0.066 265.4)
- #655125
#655125
oklch(44.6% 0.067 85)
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 #425379, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.022
- Dusk #4E5481 ΔE 0.023
- Dusty Grape #545775 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.033
- Twilight #4E518B ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.042
- Dusk Blue #26538D ΔE 0.044
- Light Navy #155084 ΔE 0.050
Use #425379 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.