#6364B6
Closest named color: Iris (#6258C4). oklch(54.1% 0.126 280.8), rgb(99, 100, 182).
Aa
White text reads best on this color (5.21:1).
About this color
#6364B6 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 54%, its chroma 0.126 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 5.21:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 4.02:1 |
| White text | 5.21:1 |
Values
| HEX | #6364B6 |
| RGB | rgb(99, 100, 182) |
| HSL | hsl(239, 36%, 55%) |
| OKLCH | oklch(54.1% 0.126 280.8) |
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 #6364B6 | 5.21:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #6364B6 | 4.02:1 | AA large text | Lc 28.4 | Dividers and decoration only |
| #6364B6 text on white | 5.21:1 | AA | Lc 75.7 | Fine for body text |
| #6364B6 text on black | 4.02:1 | AA large text | Lc -26.0 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#B9BDE5
oklch(80.9% 0.056 280.6)
-
Step 400
400
#969AD8
oklch(70.6% 0.09 281)
-
Step 500
500
#7D80CE
oklch(63.1% 0.116 280.8)
-
Step 600
600 (this color)
#6364B6
oklch(54.1% 0.126 280.8)
-
Step 700
700
#5657A1
oklch(49.2% 0.116 280.6)
-
Step 800
800
#464782
oklch(42.6% 0.096 280.8)
-
Step 900
900
#3B3C69
oklch(37.8% 0.076 281.1)
-
Step 950
950
#22233D
oklch(26.9% 0.048 281)
#6364B6 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) | #4470B9 | 0.046 |
| Deuteranopia (no green cones) | #3E6AB4 | 0.047 |
| Tritanopia (no blue cones) | #477584 | 0.110 |
| Achromatopsia (no color) | #6D6D6D | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6364B6
#6364B6
oklch(54.1% 0.126 280.8)
- #7E7000
#7E7000
oklch(54.1% 0.113 100.7)
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 #6364B6, closest first.
No curated palette has a color within ΔE 0.04 of #6364B6.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Dark Periwinkle #665FD1 ΔE 0.046
- French Blue #436BAD ΔE 0.046
- Slate Blue #6A5ACD ΔE 0.047
- Light Indigo #6D5ACF ΔE 0.050
- Mid Blue #276AB3 ΔE 0.065
- Flat Blue #3C73A8 ΔE 0.066
- Windows Blue #3778BF ΔE 0.066
Use #6364B6 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.