#634D7A
Closest named color: Dusk (#4E5481). oklch(46.2% 0.076 306.1), rgb(99, 77, 122).
Aa
White text reads best on this color (7.30:1).
About this color
#634D7A is a medium-dark, moderately saturated purple. In OKLCH its lightness is 46%, its chroma 0.076 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.037 away. White text reads best on it, at 7.30:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.076) |
| Temperature | in between |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #634D7A |
| RGB | rgb(99, 77, 122) |
| HSL | hsl(269, 23%, 39%) |
| OKLCH | oklch(46.2% 0.076 306.1) |
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 #634D7A | 7.30:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #634D7A | 2.87:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #634D7A text on white | 7.30:1 | AAA | Lc 85.3 | Fine for body text |
| #634D7A text on black | 2.87:1 | Fails | Lc -16.7 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EBE8F0
oklch(93.6% 0.011 303.1)
-
Step 200
200
#DCD6E4
oklch(88.5% 0.02 305.2)
-
Step 300
300
#C6BBD4
oklch(80.9% 0.037 305.4)
-
Step 400
400
#AA98BE
oklch(70.8% 0.058 306.4)
-
Step 500
500
#957EAE
oklch(63.2% 0.075 306.2)
-
Step 600
600
#7F6799
oklch(55.6% 0.08 305.9)
-
Step 700
700 (this color)
#634D7A
oklch(46.2% 0.076 306.1)
-
Step 800
800
#57466A
oklch(42.7% 0.062 305.6)
-
Step 900
900
#483B56
oklch(37.7% 0.048 306.2)
-
Step 950
950
#2A2333
oklch(27.1% 0.031 304.4)
#634D7A 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) | #44567C | 0.052 |
| Deuteranopia (no green cones) | #485679 | 0.048 |
| Tritanopia (no blue cones) | #60545E | 0.057 |
| Achromatopsia (no color) | #565656 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634D7A
#634D7A
oklch(46.2% 0.076 306.1)
- #4E602F
#4E602F
oklch(46.2% 0.076 125.8)
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 #634D7A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.037
- Dusty Grape #545775 ΔE 0.039
- Twilight #4E518B ΔE 0.042
- YInMn Blue #415A77 ΔE 0.062
- Dusky Blue #475F94 ΔE 0.067
- Muted Purple #805B87 ΔE 0.068
- Dull Purple #84597E ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.071
Use #634D7A 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.