#634079
Closest named color: Twilight (#4E518B). oklch(43.6% 0.099 311.2), rgb(99, 64, 121).
Aa
White text reads best on this color (8.26:1).
About this color
#634079 is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.099 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.057 away. White text reads best on it, at 8.26:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.53:1 |
| White text | 8.26:1 |
Values
| HEX | #634079 |
| RGB | rgb(99, 64, 121) |
| HSL | hsl(277, 31%, 36%) |
| OKLCH | oklch(43.6% 0.099 311.2) |
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 #634079 | 8.26:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #634079 | 2.53:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #634079 text on white | 8.26:1 | AAA | Lc 88.4 | Fine for body text |
| #634079 text on black | 2.53:1 | Fails | Lc -13.8 | Not readable |
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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#EDE7F2
oklch(93.6% 0.016 310.1)
-
Step 200
200
#E0D4E9
oklch(88.6% 0.031 311)
-
Step 300
300
#CDB7DD
oklch(81% 0.058 311)
-
Step 400
400
#B390CB
oklch(70.6% 0.092 311.1)
-
Step 500
500
#A174BE
oklch(63.2% 0.118 311.3)
-
Step 600
600
#8B5BAA
oklch(55.6% 0.128 310.9)
-
Step 700
700
#764A92
oklch(49% 0.12 310.9)
-
Step 800
800 (this color)
#634079
oklch(43.6% 0.099 311.2)
-
Step 900
900
#4F355F
oklch(37.8% 0.076 311.6)
-
Step 950
950
#2E1F38
oklch(27% 0.049 310.9)
#634079 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) | #344D7B | 0.078 |
| Deuteranopia (no green cones) | #3D4F77 | 0.071 |
| Tritanopia (no blue cones) | #614956 | 0.070 |
| Achromatopsia (no color) | #4E4E4E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634079
#634079
oklch(43.6% 0.099 311.2)
- #3D5C1B
#3D5C1B
oklch(43.6% 0.099 131.3)
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 #634079, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.059
- Dusk #4E5481 ΔE 0.061
- Rebecca Purple #663399 ΔE 0.064
- Dusty Grape #545775 ΔE 0.069
- Blueberry #464196 ΔE 0.070
- Light Eggplant #894585 ΔE 0.077
- Brownish Purple #76424E ΔE 0.082
Use #634079 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.