#635A9E
Closest named color: Dusky Blue (#475F94). oklch(50.7% 0.106 288.1), rgb(99, 90, 158).
Aa
White text reads best on this color (6.02:1).
About this color
#635A9E is a medium-dark, moderately saturated purple. In OKLCH its lightness is 51%, its chroma 0.106 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.046 away. White text reads best on it, at 6.02:1.
| Hue family | Purples |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #635A9E |
| RGB | rgb(99, 90, 158) |
| HSL | hsl(248, 27%, 49%) |
| OKLCH | oklch(50.7% 0.106 288.1) |
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 #635A9E | 6.02:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #635A9E | 3.48:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #635A9E text on white | 6.02:1 | AA | Lc 80.0 | Fine for body text |
| #635A9E text on black | 3.48:1 | AA large text | Lc -21.8 | 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
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D8D7EB
oklch(88.6% 0.027 288.1)
-
Step 300
300
#BEBCE1
oklch(80.9% 0.052 287.7)
-
Step 400
400
#9E99D1
oklch(70.8% 0.081 288.2)
-
Step 500
500
#877FC5
oklch(63.2% 0.104 288.3)
-
Step 600
600
#7167B2
oklch(55.6% 0.114 288.2)
-
Step 700
700 (this color)
#635A9E
oklch(50.7% 0.106 288.1)
-
Step 800
800
#4D467C
oklch(42.7% 0.088 288)
-
Step 900
900
#403B64
oklch(37.7% 0.069 288.2)
-
Step 950
950
#25233A
oklch(27% 0.042 287.2)
#635A9E 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) | #4364A1 | 0.048 |
| Deuteranopia (no green cones) | #43619C | 0.047 |
| Tritanopia (no blue cones) | #546774 | 0.089 |
| Achromatopsia (no color) | #636363 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635A9E
#635A9E
oklch(50.7% 0.106 288.1)
- #6B690A
#6B690A
oklch(50.6% 0.106 108.3)
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 #635A9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.046
- Twilight #4E518B ΔE 0.051
- French Blue #436BAD ΔE 0.059
- Dusk #4E5481 ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.060
- Iris #6258C4 ΔE 0.061
- Muted Purple #805B87 ΔE 0.061
- Denim #3B638C ΔE 0.068
Use #635A9E 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.