#631D53
Closest named color: Grape Purple (#5D1451). oklch(36.2% 0.12 338.1), rgb(99, 29, 83).
Aa
White text reads best on this color (11.46:1).
About this color
#631D53 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.120 and its hue 338°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.022 away. White text reads best on it, at 11.46:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.83:1 |
| White text | 11.46:1 |
Values
| HEX | #631D53 |
| RGB | rgb(99, 29, 83) |
| HSL | hsl(314, 55%, 25%) |
| OKLCH | oklch(36.2% 0.12 338.1) |
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 #631D53 | 11.46:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #631D53 | 1.83:1 | Fails | Lc 8.3 | Not readable |
| #631D53 text on white | 11.46:1 | AAA | Lc 95.6 | Preferred for body text |
| #631D53 text on black | 1.83:1 | 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
#FBF2F8
oklch(97% 0.012 337.5)
-
Step 100
100
#F6E4F0
oklch(93.7% 0.025 337.8)
-
Step 200
200
#F0CDE5
oklch(88.5% 0.05 337.5)
-
Step 300
300
#E8AAD5
oklch(80.9% 0.091 338.2)
-
Step 400
400
#D97BBF
oklch(70.7% 0.143 338.3)
-
Step 500
500
#CD54AF
oklch(63.2% 0.185 338.4)
-
Step 600
600
#B8339B
oklch(55.7% 0.201 338.1)
-
Step 700
700
#9E2384
oklch(49.1% 0.187 338.3)
-
Step 800
800
#80206B
oklch(42.6% 0.154 338.2)
-
Step 900
900 (this color)
#631D53
oklch(36.2% 0.12 338.1)
-
Step 950
950
#3D1533
oklch(27% 0.076 338.3)
#631D53 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) | #203355 | 0.129 |
| Deuteranopia (no green cones) | #363D51 | 0.112 |
| Tritanopia (no blue cones) | #692035 | 0.057 |
| Achromatopsia (no color) | #393939 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631D53
#631D53
oklch(36.2% 0.12 338.1)
- #004B2C
#004B2C
oklch(36.4% 0.085 157.9)
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 #631D53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.022
- Velvet #750851 ΔE 0.041
- Rich Purple #720058 ΔE 0.042
- Merlot #730039 ΔE 0.057
- Plum Purple #4E0550 ΔE 0.066
- Red Purple #820747 ΔE 0.069
- Wine #80013F ΔE 0.071
- Deep Violet #490648 ΔE 0.076
Use #631D53 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.