#631F53
Closest named color: Grape Purple (#5D1451). oklch(36.5% 0.117 338.3), rgb(99, 31, 83).
Aa
White text reads best on this color (11.34:1).
About this color
#631F53 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.117 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.026 away. White text reads best on it, at 11.34:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.85:1 |
| White text | 11.34:1 |
Values
| HEX | #631F53 |
| RGB | rgb(99, 31, 83) |
| HSL | hsl(314, 52%, 25%) |
| OKLCH | oklch(36.5% 0.117 338.3) |
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 #631F53 | 11.34:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #631F53 | 1.85:1 | Fails | Lc 8.4 | Not readable |
| #631F53 text on white | 11.34:1 | AAA | Lc 95.4 | Preferred for body text |
| #631F53 text on black | 1.85:1 | Fails | Lc 0.0 | 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
#FBF3F8
oklch(97.2% 0.011 339.3)
-
Step 100
100
#F6E4F0
oklch(93.7% 0.025 337.8)
-
Step 200
200
#F0CDE4
oklch(88.5% 0.049 338.8)
-
Step 300
300
#E7ABD4
oklch(80.9% 0.088 338.6)
-
Step 400
400
#D87CBE
oklch(70.7% 0.14 338.5)
-
Step 500
500
#CB56AE
oklch(63.1% 0.179 338.2)
-
Step 600
600
#B6369A
oklch(55.6% 0.195 338)
-
Step 700
700
#9D2683
oklch(49.1% 0.182 338.4)
-
Step 800
800
#7F226A
oklch(42.6% 0.15 338.4)
-
Step 900
900 (this color)
#631F53
oklch(36.5% 0.117 338.3)
-
Step 950
950
#3C1533
oklch(26.9% 0.075 337.3)
#631F53 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) | #223355 | 0.125 |
| Deuteranopia (no green cones) | #373E51 | 0.110 |
| Tritanopia (no blue cones) | #692236 | 0.055 |
| Achromatopsia (no color) | #3A3A3A | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631F53
#631F53
oklch(36.5% 0.117 338.3)
- #004B2D
#004B2D
oklch(36.4% 0.084 158.6)
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 #631F53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.026
- Velvet #750851 ΔE 0.043
- Rich Purple #720058 ΔE 0.044
- Merlot #730039 ΔE 0.058
- Plum Purple #4E0550 ΔE 0.069
- Red Purple #820747 ΔE 0.069
- Wine #80013F ΔE 0.071
- Deep Violet #490648 ΔE 0.079
Use #631F53 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.