#5A64AC
Closest named color: French Blue (#436BAD). oklch(52.9% 0.113 275.8), rgb(90, 100, 172).
Aa
White text reads best on this color (5.44:1).
About this color
#5A64AC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.113 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.031 away. White text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #5A64AC |
| RGB | rgb(90, 100, 172) |
| HSL | hsl(233, 33%, 51%) |
| OKLCH | oklch(52.9% 0.113 275.8) |
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 #5A64AC | 5.44:1 | AA | Lc -82.4 | Fine for body text |
| Black text on #5A64AC | 3.85:1 | AA large text | Lc 27.0 | Dividers and decoration only |
| #5A64AC text on white | 5.44:1 | AA | Lc 77.1 | Fine for body text |
| #5A64AC text on black | 3.85:1 | AA large text | Lc -24.7 | 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 600.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F4
oklch(93.6% 0.015 277.8)
-
Step 200
200
#D4D8EC
oklch(88.5% 0.028 276.8)
-
Step 300
300
#B7BFE2
oklch(81% 0.05 275.1)
-
Step 400
400
#929DD4
oklch(70.8% 0.082 275.4)
-
Step 500
500
#7884C8
oklch(63.2% 0.103 275.4)
-
Step 600
600 (this color)
#5A64AC
oklch(52.9% 0.113 275.8)
-
Step 700
700
#515A9C
oklch(49.1% 0.106 275.9)
-
Step 800
800
#424A7E
oklch(42.7% 0.087 275.5)
-
Step 900
900
#383E65
oklch(37.7% 0.067 276)
-
Step 950
950
#21243B
oklch(26.9% 0.043 277.4)
#5A64AC 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) | #486DAF | 0.030 |
| Deuteranopia (no green cones) | #4166AA | 0.031 |
| Tritanopia (no blue cones) | #3C737F | 0.101 |
| Achromatopsia (no color) | #696969 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A64AC
#5A64AC
oklch(52.9% 0.113 275.8)
- #7E6A00
#7E6A00
oklch(52.8% 0.109 96)
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 #5A64AC, closest first.
No curated palette has a color within ΔE 0.04 of #5A64AC.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.031
- Dusky Blue #475F94 ΔE 0.048
- Flat Blue #3C73A8 ΔE 0.052
- Mid Blue #276AB3 ΔE 0.053
- Iris #6258C4 ΔE 0.053
- Muted Blue #3B719F ΔE 0.056
- Dull Blue #49759C ΔE 0.062
- Windows Blue #3778BF ΔE 0.062
Use #5A64AC 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.