#6367AF
Closest named color: French Blue (#436BAD). oklch(54.3% 0.111 279.6), rgb(99, 103, 175).
Aa
White text reads best on this color (5.13:1).
About this color
#6367AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.111 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.041 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.08:1 |
| White text | 5.13:1 |
Values
| HEX | #6367AF |
| RGB | rgb(99, 103, 175) |
| HSL | hsl(237, 32%, 54%) |
| OKLCH | oklch(54.3% 0.111 279.6) |
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 #6367AF | 5.13:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #6367AF | 4.08:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #6367AF text on white | 5.13:1 | AA | Lc 75.3 | Fine for body text |
| #6367AF text on black | 4.08:1 | AA large text | Lc -26.4 | 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
#D5D8EC
oklch(88.6% 0.028 279)
-
Step 300
300
#B9BEE1
oklch(80.9% 0.05 278.8)
-
Step 400
400
#969CD2
oklch(70.8% 0.079 279.3)
-
Step 500
500
#7D82C7
oklch(63.1% 0.103 279.8)
-
Step 600
600 (this color)
#6367AF
oklch(54.3% 0.111 279.6)
-
Step 700
700
#55599A
oklch(49.1% 0.103 279.2)
-
Step 800
800
#46497D
oklch(42.8% 0.086 279.6)
-
Step 900
900
#3A3D64
oklch(37.6% 0.067 279.3)
-
Step 950
950
#22243B
oklch(27% 0.043 279.3)
#6367AF 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) | #4D70B2 | 0.034 |
| Deuteranopia (no green cones) | #486BAD | 0.035 |
| Tritanopia (no blue cones) | #4B7682 | 0.099 |
| Achromatopsia (no color) | #6E6E6E | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6367AF
#6367AF
oklch(54.3% 0.111 279.6)
- #7F7004
#7F7004
oklch(54.3% 0.112 99.9)
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 #6367AF, closest first.
No curated palette has a color within ΔE 0.04 of #6367AF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.041
- Iris #6258C4 ΔE 0.055
- Flat Blue #3C73A8 ΔE 0.056
- Dark Periwinkle #665FD1 ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.061
- Muted Blue #3B719F ΔE 0.062
- Windows Blue #3778BF ΔE 0.062
- Dusky Blue #475F94 ΔE 0.062
Use #6367AF 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.