#4B668F
Closest named color: Denim (#3B638C). oklch(50.7% 0.073 258.5), rgb(75, 102, 143).
Aa
White text reads best on this color (5.83:1).
About this color
#4B668F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.073 and its hue 259°. 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 5.83:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.59:1 |
| White text | 5.83:1 |
Values
| HEX | #4B668F |
| RGB | rgb(75, 102, 143) |
| HSL | hsl(216, 31%, 43%) |
| OKLCH | oklch(50.7% 0.073 258.5) |
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 #4B668F | 5.83:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #4B668F | 3.59:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #4B668F text on white | 5.83:1 | AA | Lc 79.1 | Fine for body text |
| #4B668F text on black | 3.59:1 | AA large text | Lc -22.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B3C2D8
oklch(81% 0.035 257.9)
-
Step 400
400
#8BA2C4
oklch(70.7% 0.056 258)
-
Step 500
500
#6F8BB6
oklch(63.2% 0.073 258.8)
-
Step 600
600
#5774A1
oklch(55.5% 0.078 259)
-
Step 700
700 (this color)
#4B668F
oklch(50.7% 0.073 258.5)
-
Step 800
800
#3A5070
oklch(42.8% 0.06 257.7)
-
Step 900
900
#32425B
oklch(37.7% 0.048 259.1)
-
Step 950
950
#1D2735
oklch(27% 0.03 256.9)
#4B668F 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) | #576891 | 0.018 |
| Deuteranopia (no green cones) | #4F628E | 0.012 |
| Tritanopia (no blue cones) | #306F74 | 0.065 |
| Achromatopsia (no color) | #656565 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B668F
#4B668F
oklch(50.7% 0.073 258.5)
- #7C6031
#7C6031
oklch(50.7% 0.074 78.8)
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 #4B668F, 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 0.025
- Muted Blue #3B719F ΔE 0.037
- Metallic Blue #4F738E ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.041
- Dull Blue #49759C ΔE 0.044
- Slate #516572 ΔE 0.047
- French Blue #436BAD ΔE 0.047
Use #4B668F 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.