#631576
Closest named color: Purple (#800080). oklch(37.7% 0.16 318.6), rgb(99, 21, 118).
Aa
White text reads best on this color (11.05:1).
About this color
#631576 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.160 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple (#800080), ΔE 0.063 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.160) |
| Temperature | in between |
| Nearest name | Purple (#800080) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #631576 |
| RGB | rgb(99, 21, 118) |
| HSL | hsl(288, 70%, 27%) |
| OKLCH | oklch(37.7% 0.16 318.6) |
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 #631576 | 11.05:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #631576 | 1.89:1 | Fails | Lc 9.5 | Not readable |
| #631576 text on white | 11.05:1 | AAA | Lc 94.4 | Preferred for body text |
| #631576 text on black | 1.89:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#FAF2FD
oklch(97% 0.017 316.9)
-
Step 100
100
#F4E3F9
oklch(93.6% 0.034 318.5)
-
Step 200
200
#EDCCF6
oklch(88.6% 0.067 318.9)
-
Step 300
300
#E2A7F2
oklch(80.8% 0.121 318.9)
-
Step 400
400
#D273EC
oklch(70.7% 0.193 318.7)
-
Step 500
500
#C443E5
oklch(63% 0.246 318.6)
-
Step 600
600
#B003D3
oklch(55.6% 0.267 318.7)
-
Step 700
700
#9500B3
oklch(49.1% 0.237 318.7)
-
Step 800
800
#7B0194
oklch(42.7% 0.206 318.8)
-
Step 900
900 (this color)
#631576
oklch(37.7% 0.16 318.6)
-
Step 950
950
#3A1045
oklch(27% 0.101 318.5)
#631576 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) | #003779 | 0.152 |
| Deuteranopia (no green cones) | #1B3E74 | 0.140 |
| Tritanopia (no blue cones) | #632B46 | 0.100 |
| Achromatopsia (no color) | #3C3C3C | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631576
#631576
oklch(37.7% 0.16 318.6)
- #1A4F00
#1A4F00
oklch(37.7% 0.118 138.5)
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 #631576, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple #800080 ΔE 0.063
- Royal Purple #4B006E ΔE 0.063
- Rich Purple #720058 ΔE 0.063
- Grape Purple #5D1451 ΔE 0.064
- Indigo #4B0082 ΔE 0.065
- Rebecca Purple #663399 ΔE 0.076
- Velvet #750851 ΔE 0.077
- Plum Purple #4E0550 ΔE 0.082
Use #631576 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.