#6364A5
Closest named color: French Blue (#436BAD). oklch(53.1% 0.101 281.7), rgb(99, 100, 165).
Aa
White text reads best on this color (5.38:1).
About this color
#6364A5 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 53%, its chroma 0.101 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.043 away. White text reads best on it, at 5.38:1.
| Hue family | Purples |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #6364A5 |
| RGB | rgb(99, 100, 165) |
| HSL | hsl(239, 27%, 52%) |
| OKLCH | oklch(53.1% 0.101 281.7) |
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 #6364A5 | 5.38:1 | AA | Lc -82.1 | Fine for body text |
| Black text on #6364A5 | 3.89:1 | AA large text | Lc 27.3 | Dividers and decoration only |
| #6364A5 text on white | 5.38:1 | AA | Lc 76.8 | Fine for body text |
| #6364A5 text on black | 3.89:1 | AA large text | Lc -25.0 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D6D8EA
oklch(88.6% 0.025 280.8)
-
Step 300
300
#BBBEDE
oklch(81% 0.045 281.1)
-
Step 400
400
#999CCD
oklch(70.8% 0.071 281.7)
-
Step 500
500
#8082C1
oklch(63% 0.094 281.9)
-
Step 600
600 (this color)
#6364A5
oklch(53.1% 0.101 281.7)
-
Step 700
700
#585994
oklch(49% 0.094 281.6)
-
Step 800
800
#484978
oklch(42.6% 0.077 281.7)
-
Step 900
900
#3C3D61
oklch(37.6% 0.061 281.8)
-
Step 950
950
#232439
oklch(27% 0.039 281.4)
#6364A5 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) | #4E6DA8 | 0.034 |
| Deuteranopia (no green cones) | #4B68A3 | 0.033 |
| Tritanopia (no blue cones) | #50717C | 0.089 |
| Achromatopsia (no color) | #6A6A6A | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6364A5
#6364A5
oklch(53.1% 0.101 281.7)
- #786E1A
#786E1A
oklch(53.2% 0.101 102.3)
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 #6364A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.043
- Dusky Blue #475F94 ΔE 0.051
- Flat Blue #3C73A8 ΔE 0.057
- Muted Blue #3B719F ΔE 0.059
- Dark Lavender #856798 ΔE 0.059
- Dull Blue #49759C ΔE 0.060
- Iris #6258C4 ΔE 0.062
- Muted Purple #805B87 ΔE 0.064
Use #6364A5 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.