#4B668C
Closest named color: Denim (#3B638C). oklch(50.5% 0.069 257), rgb(75, 102, 140).
Aa
White text reads best on this color (5.86:1).
About this color
#4B668C is a medium-dark, muted blue. In OKLCH its lightness is 51%, its chroma 0.069 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.022 away. White text reads best on it, at 5.86:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.57:1 |
| White text | 5.86:1 |
Values
| HEX | #4B668C |
| RGB | rgb(75, 102, 140) |
| HSL | hsl(215, 30%, 42%) |
| OKLCH | oklch(50.5% 0.069 257) |
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 #4B668C | 5.86:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #4B668C | 3.57:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #4B668C text on white | 5.86:1 | AA | Lc 79.3 | Fine for body text |
| #4B668C text on black | 3.57:1 | AA large text | Lc -22.5 | 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 700.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE6
oklch(88.6% 0.019 258.4)
-
Step 300
300
#B3C2D7
oklch(80.9% 0.034 256.8)
-
Step 400
400
#8CA2C2
oklch(70.7% 0.053 257.7)
-
Step 500
500
#6F8BB3
oklch(63.1% 0.069 257.3)
-
Step 600
600
#57759F
oklch(55.7% 0.074 256.9)
-
Step 700
700 (this color)
#4B668C
oklch(50.5% 0.069 257)
-
Step 800
800
#3B506E
oklch(42.7% 0.057 257.3)
-
Step 900
900
#324259
oklch(37.5% 0.045 257.4)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#4B668C 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) | #58688E | 0.019 |
| Deuteranopia (no green cones) | #50628B | 0.012 |
| Tritanopia (no blue cones) | #316E73 | 0.061 |
| Achromatopsia (no color) | #656565 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B668C
#4B668C
oklch(50.5% 0.069 257)
- #7B5F35
#7B5F35
oklch(50.4% 0.069 76.3)
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 #4B668C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.022
- Dusky Blue #475F94 ΔE 0.028
- Muted Blue #3B719F ΔE 0.039
- Metallic Blue #4F738E ΔE 0.039
- Slate #516572 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.043
- Dull Blue #49759C ΔE 0.045
- YInMn Blue #415A77 ΔE 0.047
Use #4B668C 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.