#4664A3
Closest named color: French Blue (#436BAD). oklch(51% 0.107 263.8), rgb(70, 100, 163).
Aa
White text reads best on this color (5.81:1).
About this color
#4664A3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.107 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.022 away. White text reads best on it, at 5.81:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.61:1 |
| White text | 5.81:1 |
Values
| HEX | #4664A3 |
| RGB | rgb(70, 100, 163) |
| HSL | hsl(221, 40%, 46%) |
| OKLCH | oklch(51% 0.107 263.8) |
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 #4664A3 | 5.81:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #4664A3 | 3.61:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #4664A3 text on white | 5.81:1 | AA | Lc 78.9 | Fine for body text |
| #4664A3 text on black | 3.61:1 | AA large text | Lc -22.9 | 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
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#CFD9ED
oklch(88.4% 0.03 264.4)
-
Step 300
300
#B0C1E3
oklch(80.9% 0.052 264.2)
-
Step 400
400
#86A0D5
oklch(70.6% 0.083 264.1)
-
Step 500
500
#6888C9
oklch(63% 0.105 263.7)
-
Step 600
600
#5071B6
oklch(55.6% 0.114 263.7)
-
Step 700
700 (this color)
#4664A3
oklch(51% 0.107 263.8)
-
Step 800
800
#364D7F
oklch(42.6% 0.088 264.3)
-
Step 900
900
#2E4166
oklch(37.7% 0.068 262.8)
-
Step 950
950
#1B263C
oklch(27% 0.044 263.4)
#4664A3 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) | #4A6AA6 | 0.018 |
| Deuteranopia (no green cones) | #3E61A2 | 0.013 |
| Tritanopia (no blue cones) | #05727B | 0.097 |
| Achromatopsia (no color) | #656565 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4664A3
#4664A3
oklch(51% 0.107 263.8)
- #826000
#826000
oklch(51% 0.105 84.3)
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 #4664A3, closest first.
No curated palette has a color within ΔE 0.04 of #4664A3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.022
- Dusky Blue #475F94 ΔE 0.025
- Mid Blue #276AB3 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.038
- Muted Blue #3B719F ΔE 0.040
- Denim #3B638C ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.042
- Peacock Blue #016795 ΔE 0.053
Use #4664A3 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.