#631A5B
Closest named color: Grape Purple (#5D1451). oklch(36.3% 0.131 332.7), rgb(99, 26, 91).
Aa
White text reads best on this color (11.47:1).
About this color
#631A5B is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.131 and its hue 333°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.023 away. White text reads best on it, at 11.47:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.131) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.82:1 |
| White text | 11.47:1 |
Values
| HEX | #631A5B |
| RGB | rgb(99, 26, 91) |
| HSL | hsl(307, 58%, 25%) |
| OKLCH | oklch(36.3% 0.131 332.7) |
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 #631A5B | 11.47:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #631A5B | 1.82:1 | Fails | Lc 8.3 | Not readable |
| #631A5B text on white | 11.47:1 | AAA | Lc 95.6 | Preferred for body text |
| #631A5B text on black | 1.82:1 | 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
#FBF2F9
oklch(97% 0.013 333)
-
Step 100
100
#F6E3F2
oklch(93.5% 0.029 332.8)
-
Step 200
200
#F0CCE9
oklch(88.4% 0.055 332.7)
-
Step 300
300
#E7A9DC
oklch(80.9% 0.098 332.8)
-
Step 400
400
#D978CB
oklch(70.7% 0.158 332.7)
-
Step 500
500
#CC4FBD
oklch(63.1% 0.202 332.7)
-
Step 600
600
#B72BA9
oklch(55.6% 0.218 332.6)
-
Step 700
700
#9D1A91
oklch(49.1% 0.203 332.6)
-
Step 800
800
#801A76
oklch(42.7% 0.169 332.6)
-
Step 900
900 (this color)
#631A5B
oklch(36.3% 0.131 332.7)
-
Step 950
950
#3D1338
oklch(27% 0.084 332.6)
#631A5B 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) | #17335D | 0.140 |
| Deuteranopia (no green cones) | #313D59 | 0.120 |
| Tritanopia (no blue cones) | #682138 | 0.068 |
| Achromatopsia (no color) | #393939 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631A5B
#631A5B
oklch(36.3% 0.131 332.7)
- #004B24
#004B24
oklch(36.2% 0.094 152.8)
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 #631A5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.023
- Rich Purple #720058 ΔE 0.037
- Velvet #750851 ΔE 0.043
- Plum Purple #4E0550 ΔE 0.062
- Merlot #730039 ΔE 0.068
- Deep Violet #490648 ΔE 0.076
- Red Purple #820747 ΔE 0.076
- Wine #80013F ΔE 0.079
Use #631A5B 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.