#4B669F
Closest named color: French Blue (#436BAD). oklch(51.5% 0.096 264.1), rgb(75, 102, 159).
Aa
White text reads best on this color (5.67:1).
About this color
#4B669F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.096 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.024 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.70:1 |
| White text | 5.67:1 |
Values
| HEX | #4B669F |
| RGB | rgb(75, 102, 159) |
| HSL | hsl(221, 36%, 46%) |
| OKLCH | oklch(51.5% 0.096 264.1) |
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 #4B669F | 5.67:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #4B669F | 3.70:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #4B669F text on white | 5.67:1 | AA | Lc 78.3 | Fine for body text |
| #4B669F text on black | 3.70:1 | AA large text | Lc -23.5 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0D9EB
oklch(88.4% 0.027 264.4)
-
Step 300
300
#B1C1E0
oklch(80.9% 0.047 263.7)
-
Step 400
400
#89A1D0
oklch(70.8% 0.074 263.5)
-
Step 500
500
#6C89C4
oklch(63.2% 0.095 263.8)
-
Step 600
600
#5472B0
oklch(55.7% 0.103 263.8)
-
Step 700
700 (this color)
#4B669F
oklch(51.5% 0.096 264.1)
-
Step 800
800
#384E7B
oklch(42.8% 0.08 263.6)
-
Step 900
900
#314163
oklch(37.8% 0.062 264.4)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#4B669F 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) | #506BA1 | 0.016 |
| Deuteranopia (no green cones) | #46639E | 0.011 |
| Tritanopia (no blue cones) | #22727B | 0.086 |
| Achromatopsia (no color) | #676767 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B669F
#4B669F
oklch(51.5% 0.096 264.1)
- #826217
#826217
oklch(51.6% 0.097 83.7)
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 #4B669F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.024
- Dusky Blue #475F94 ΔE 0.025
- Muted Blue #3B719F ΔE 0.034
- Flat Blue #3C73A8 ΔE 0.037
- Denim #3B638C ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.042
- Mid Blue #276AB3 ΔE 0.043
- Dull Blue #49759C ΔE 0.045
Use #4B669F 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.