#4B5B80
Closest named color: YInMn Blue (#415A77). oklch(47.4% 0.063 266.1), rgb(75, 91, 128).
Aa
White text reads best on this color (6.75:1).
About this color
#4B5B80 is a medium-dark, muted blue. In OKLCH its lightness is 47%, its chroma 0.063 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.021 away. White text reads best on it, at 6.75:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.10:1 |
| White text | 6.75:1 |
Values
| HEX | #4B5B80 |
| RGB | rgb(75, 91, 128) |
| HSL | hsl(222, 26%, 40%) |
| OKLCH | oklch(47.4% 0.063 266.1) |
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 #4B5B80 | 6.75:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #4B5B80 | 3.10:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #4B5B80 text on white | 6.75:1 | AA | Lc 83.3 | Fine for body text |
| #4B5B80 text on black | 3.10:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E5
oklch(88.5% 0.017 267.8)
-
Step 300
300
#B7C1D5
oklch(80.9% 0.03 264.4)
-
Step 400
400
#92A0C0
oklch(70.6% 0.05 266.5)
-
Step 500
500
#7889B0
oklch(63.1% 0.062 266.3)
-
Step 600
600
#60739C
oklch(55.7% 0.068 265.1)
-
Step 700
700 (this color)
#4B5B80
oklch(47.4% 0.063 266.1)
-
Step 800
800
#414E6C
oklch(42.6% 0.053 266.1)
-
Step 900
900
#374158
oklch(37.6% 0.042 266.2)
-
Step 950
950
#202633
oklch(26.9% 0.026 265.4)
#4B5B80 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) | #4E5E82 | 0.010 |
| Deuteranopia (no green cones) | #49597F | 0.007 |
| Tritanopia (no blue cones) | #3A6368 | 0.057 |
| Achromatopsia (no color) | #5B5B5B | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B5B80
#4B5B80
oklch(47.4% 0.063 266.1)
- #6C5930
#6C5930
oklch(47.3% 0.063 85.1)
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 #4B5B80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.021
- Dusk #4E5481 ΔE 0.021
- Dusty Grape #545775 ΔE 0.021
- Denim #3B638C ΔE 0.030
- Dusky Blue #475F94 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.036
- Twilight #4E518B ΔE 0.038
Use #4B5B80 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.