#631C62
Closest named color: Grape Purple (#5D1451). oklch(37% 0.134 328.5), rgb(99, 28, 98).
Aa
White text reads best on this color (11.21:1).
About this color
#631C62 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.134 and its hue 328°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.033 away. White text reads best on it, at 11.21:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.87:1 |
| White text | 11.21:1 |
Values
| HEX | #631C62 |
| RGB | rgb(99, 28, 98) |
| HSL | hsl(301, 56%, 25%) |
| OKLCH | oklch(37% 0.134 328.5) |
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 #631C62 | 11.21:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #631C62 | 1.87:1 | Fails | Lc 8.9 | Not readable |
| #631C62 text on white | 11.21:1 | AAA | Lc 95.0 | Preferred for body text |
| #631C62 text on black | 1.87:1 | Fails | Lc -7.6 | 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
#FBF2FA
oklch(97% 0.014 329.1)
-
Step 100
100
#F5E3F4
oklch(93.5% 0.03 327.5)
-
Step 200
200
#EECDEC
oklch(88.5% 0.055 327.9)
-
Step 300
300
#E5A9E1
oklch(80.8% 0.101 328.7)
-
Step 400
400
#D678D2
oklch(70.7% 0.162 328.7)
-
Step 500
500
#C850C6
oklch(63.1% 0.205 328.3)
-
Step 600
600
#B42AB2
oklch(55.6% 0.224 328.7)
-
Step 700
700
#9A1A99
oklch(49.1% 0.208 328.5)
-
Step 800
800
#7D1A7C
oklch(42.6% 0.172 328.5)
-
Step 900
900 (this color)
#631C62
oklch(37% 0.134 328.5)
-
Step 950
950
#3C133B
oklch(27% 0.087 328.6)
#631C62 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) | #123564 | 0.142 |
| Deuteranopia (no green cones) | #2F3E60 | 0.120 |
| Tritanopia (no blue cones) | #66263C | 0.075 |
| Achromatopsia (no color) | #3B3B3B | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631C62
#631C62
oklch(37% 0.134 328.5)
- #004E1C
#004E1C
oklch(37% 0.106 148.4)
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 #631C62, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.033
- Rich Purple #720058 ΔE 0.042
- Velvet #750851 ΔE 0.050
- Plum Purple #4E0550 ΔE 0.067
- Royal Purple #4B006E ΔE 0.075
- Purple #800080 ΔE 0.078
- Merlot #730039 ΔE 0.079
- Deep Violet #490648 ΔE 0.082
Use #631C62 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.