#3F5872
Closest named color: YInMn Blue (#415A77). oklch(45.1% 0.053 250), rgb(63, 88, 114).
Aa
White text reads best on this color (7.36:1).
About this color
#3F5872 is a medium-dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.053 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.010 away. White text reads best on it, at 7.36:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #3F5872 |
| RGB | rgb(63, 88, 114) |
| HSL | hsl(211, 29%, 35%) |
| OKLCH | oklch(45.1% 0.053 250) |
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 #3F5872 | 7.36:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #3F5872 | 2.85:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #3F5872 text on white | 7.36:1 | AAA | Lc 85.6 | Fine for body text |
| #3F5872 text on black | 2.85:1 | Fails | Lc -16.5 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D4
oklch(81% 0.03 248.2)
-
Step 400
400
#8AA4BF
oklch(70.8% 0.049 249.5)
-
Step 500
500
#6D8DAE
oklch(63.2% 0.062 249.6)
-
Step 600
600
#54769A
oklch(55.5% 0.069 250.5)
-
Step 700
700
#446384
oklch(49% 0.065 250.8)
-
Step 800
800 (this color)
#3F5872
oklch(45.1% 0.053 250)
-
Step 900
900
#314357
oklch(37.6% 0.041 251.6)
-
Step 950
950
#1D2833
oklch(27.2% 0.026 248.8)
#3F5872 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) | #4E5973 | 0.021 |
| Deuteranopia (no green cones) | #475371 | 0.017 |
| Tritanopia (no blue cones) | #2C5E61 | 0.045 |
| Achromatopsia (no color) | #565656 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F5872
#3F5872
oklch(45.1% 0.053 250)
- #695135
#695135
oklch(45.3% 0.053 70.2)
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 #3F5872, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.010
- Dusty Grape #545775 ΔE 0.030
- Dusk #4E5481 ΔE 0.037
- Light Navy Blue #2E5A88 ΔE 0.038
- Denim #3B638C ΔE 0.047
- Slate #516572 ΔE 0.049
- Petrol #005F6A ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.052
Use #3F5872 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.