#425F72
Closest named color: YInMn Blue (#415A77). oklch(47% 0.046 237.7), rgb(66, 95, 114).
Aa
White text reads best on this color (6.74:1).
About this color
#425F72 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.046 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.020 away. White text reads best on it, at 6.74:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #425F72 |
| RGB | rgb(66, 95, 114) |
| HSL | hsl(204, 27%, 35%) |
| OKLCH | oklch(47% 0.046 237.7) |
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 #425F72 | 6.74:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #425F72 | 3.11:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #425F72 text on white | 6.74:1 | AA | Lc 83.2 | Fine for body text |
| #425F72 text on black | 3.11:1 | AA large text | Lc -18.7 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B4C3CE
oklch(80.9% 0.023 239.5)
-
Step 400
400
#8DA4B5
oklch(70.7% 0.036 240.1)
-
Step 500
500
#708EA2
oklch(63.1% 0.045 237.6)
-
Step 600
600
#58788D
oklch(55.6% 0.049 237.6)
-
Step 700
700 (this color)
#425F72
oklch(47% 0.046 237.7)
-
Step 800
800
#3B5262
oklch(42.6% 0.039 239.2)
-
Step 900
900
#334450
oklch(37.7% 0.03 239.3)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#425F72 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) | #575E73 | 0.029 |
| Deuteranopia (no green cones) | #505972 | 0.025 |
| Tritanopia (no blue cones) | #306465 | 0.037 |
| Achromatopsia (no color) | #5B5B5B | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #425F72
#425F72
oklch(47% 0.046 237.7)
- #6F5541
#6F5541
oklch(47.1% 0.046 58.9)
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 #425F72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.020
- Slate #516572 ΔE 0.029
- Dusty Grape #545775 ΔE 0.034
- Denim #3B638C ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.048
- Dusk #4E5481 ΔE 0.049
- Petrol #005F6A ΔE 0.050
- Dark Aqua #05696B ΔE 0.054
Use #425F72 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.