#4B668A
Closest named color: Denim (#3B638C). oklch(50.4% 0.066 255.8), rgb(75, 102, 138).
Aa
White text reads best on this color (5.88:1).
About this color
#4B668A is a medium-dark, muted blue. In OKLCH its lightness is 50%, its chroma 0.066 and its hue 256°. 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 5.88:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.56:1 |
| White text | 5.88:1 |
Values
| HEX | #4B668A |
| RGB | rgb(75, 102, 138) |
| HSL | hsl(214, 30%, 42%) |
| OKLCH | oklch(50.4% 0.066 255.8) |
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 #4B668A | 5.88:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #4B668A | 3.56:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #4B668A text on white | 5.88:1 | AA | Lc 79.4 | Fine for body text |
| #4B668A text on black | 3.56:1 | AA large text | Lc -22.4 | 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
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B3C2D6
oklch(80.9% 0.033 255.6)
-
Step 400
400
#8CA2C1
oklch(70.6% 0.052 257)
-
Step 500
500
#6F8BB1
oklch(63% 0.066 256.2)
-
Step 600
600
#57759D
oklch(55.6% 0.072 255.8)
-
Step 700
700 (this color)
#4B668A
oklch(50.4% 0.066 255.8)
-
Step 800
800
#3B506D
oklch(42.7% 0.055 256.6)
-
Step 900
900
#324358
oklch(37.7% 0.042 254.1)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#4B668A 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) | #58688C | 0.019 |
| Deuteranopia (no green cones) | #516289 | 0.013 |
| Tritanopia (no blue cones) | #336E72 | 0.059 |
| Achromatopsia (no color) | #646464 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B668A
#4B668A
oklch(50.4% 0.066 255.8)
- #7A5F37
#7A5F37
oklch(50.3% 0.066 76.1)
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 #4B668A, 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 0.030
- Slate #516572 ΔE 0.039
- Metallic Blue #4F738E ΔE 0.039
- Muted Blue #3B719F ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.045
- Dull Blue #49759C ΔE 0.046
Use #4B668A 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.