#635AA8
Closest named color: Iris (#6258C4). oklch(51.3% 0.121 286.6), rgb(99, 90, 168).
Aa
White text reads best on this color (5.90:1).
About this color
#635AA8 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.121 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.045 away. White text reads best on it, at 5.90:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.55:1 |
| White text | 5.90:1 |
Values
| HEX | #635AA8 |
| RGB | rgb(99, 90, 168) |
| HSL | hsl(247, 31%, 51%) |
| OKLCH | oklch(51.3% 0.121 286.6) |
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 #635AA8 | 5.90:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #635AA8 | 3.55:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #635AA8 text on white | 5.90:1 | AA | Lc 79.4 | Fine for body text |
| #635AA8 text on black | 3.55:1 | AA large text | Lc -22.4 | 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 700.
-
Step 50
50
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EE
oklch(88.4% 0.033 287.6)
-
Step 300
300
#BDBCE5
oklch(81% 0.057 286.2)
-
Step 400
400
#9C98D8
oklch(70.7% 0.093 286.6)
-
Step 500
500
#857DCE
oklch(63.1% 0.12 287)
-
Step 600
600
#6F65BB
oklch(55.6% 0.13 286.7)
-
Step 700
700 (this color)
#635AA8
oklch(51.3% 0.121 286.6)
-
Step 800
800
#4C4582
oklch(42.7% 0.099 286.7)
-
Step 900
900
#3F3A69
oklch(37.7% 0.079 286.8)
-
Step 950
950
#25223D
oklch(26.9% 0.05 287.7)
#635AA8 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) | #3D66AB | 0.055 |
| Deuteranopia (no green cones) | #3C62A6 | 0.054 |
| Tritanopia (no blue cones) | #4F6A79 | 0.102 |
| Achromatopsia (no color) | #646464 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635AA8
#635AA8
oklch(51.3% 0.121 286.6)
- #6F6A00
#6F6A00
oklch(51.2% 0.11 106.4)
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 #635AA8, closest first.
No curated palette has a color within ΔE 0.04 of #635AA8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.055
- French Blue #436BAD ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.059
- Twilight #4E518B ΔE 0.061
- Light Indigo #6D5ACF ΔE 0.063
- Dark Periwinkle #665FD1 ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.067
Use #635AA8 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.