#635CA6
Closest named color: Iris (#6258C4). oklch(51.6% 0.115 286), rgb(99, 92, 166).
Aa
White text reads best on this color (5.81:1).
About this color
#635CA6 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 52%, its chroma 0.115 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.050 away. White text reads best on it, at 5.81:1.
| Hue family | Purples |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.61:1 |
| White text | 5.81:1 |
Values
| HEX | #635CA6 |
| RGB | rgb(99, 92, 166) |
| HSL | hsl(246, 29%, 51%) |
| OKLCH | oklch(51.6% 0.115 286) |
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 #635CA6 | 5.81:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #635CA6 | 3.61:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #635CA6 text on white | 5.81:1 | AA | Lc 79.0 | Fine for body text |
| #635CA6 text on black | 3.61:1 | AA large text | Lc -22.8 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D7D7ED
oklch(88.6% 0.03 285.8)
-
Step 300
300
#BDBCE4
oklch(80.9% 0.056 286.2)
-
Step 400
400
#9B99D6
oklch(70.7% 0.088 285.4)
-
Step 500
500
#847ECB
oklch(63.1% 0.114 286.2)
-
Step 600
600
#6E66B8
oklch(55.5% 0.125 286)
-
Step 700
700 (this color)
#635CA6
oklch(51.6% 0.115 286)
-
Step 800
800
#4B4680
oklch(42.7% 0.094 285.6)
-
Step 900
900
#3E3B67
oklch(37.7% 0.074 285.4)
-
Step 950
950
#25233C
oklch(27.1% 0.046 286.6)
#635CA6 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) | #4167A9 | 0.050 |
| Deuteranopia (no green cones) | #4063A4 | 0.049 |
| Tritanopia (no blue cones) | #506B79 | 0.098 |
| Achromatopsia (no color) | #656565 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635CA6
#635CA6
oklch(51.6% 0.115 286)
- #716B00
#716B00
oklch(51.7% 0.11 105.8)
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 #635CA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.050
- Dusky Blue #475F94 ΔE 0.051
- French Blue #436BAD ΔE 0.053
- Twilight #4E518B ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.063
- Denim Blue #3B5B92 ΔE 0.065
- Light Indigo #6D5ACF ΔE 0.067
- Dark Periwinkle #665FD1 ΔE 0.067
Use #635CA6 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.