#631C4D
Closest named color: Grape Purple (#5D1451). oklch(35.8% 0.117 342.4), rgb(99, 28, 77).
Aa
White text reads best on this color (11.64:1).
About this color
#631C4D is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.117 and its hue 342°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.024 away. White text reads best on it, at 11.64:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.80:1 |
| White text | 11.64:1 |
Values
| HEX | #631C4D |
| RGB | rgb(99, 28, 77) |
| HSL | hsl(319, 56%, 25%) |
| OKLCH | oklch(35.8% 0.117 342.4) |
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 #631C4D | 11.64:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #631C4D | 1.80:1 | Fails | Lc 7.9 | Not readable |
| #631C4D text on white | 11.64:1 | AAA | Lc 96.0 | Preferred for body text |
| #631C4D text on black | 1.80:1 | 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
#FCF2F8
oklch(97.1% 0.013 340.5)
-
Step 100
100
#F7E4EE
oklch(93.7% 0.024 344.4)
-
Step 200
200
#F1CDE2
oklch(88.5% 0.049 342.3)
-
Step 300
300
#E9AAD0
oklch(80.8% 0.088 342.4)
-
Step 400
400
#DB7BB8
oklch(70.7% 0.14 342.5)
-
Step 500
500
#CF54A7
oklch(63.1% 0.181 342.3)
-
Step 600
600
#BA3392
oklch(55.6% 0.196 342.3)
-
Step 700
700
#A0247C
oklch(49.1% 0.182 342.5)
-
Step 800
800
#822165
oklch(42.8% 0.15 342.5)
-
Step 900
900 (this color)
#631C4D
oklch(35.8% 0.117 342.4)
-
Step 950
950
#3E1530
oklch(27.1% 0.074 342.9)
#631C4D 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) | #22314E | 0.128 |
| Deuteranopia (no green cones) | #383D4B | 0.112 |
| Tritanopia (no blue cones) | #691D31 | 0.052 |
| Achromatopsia (no color) | #383838 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631C4D
#631C4D
oklch(35.8% 0.117 342.4)
- #004930
#004930
oklch(35.8% 0.078 162.3)
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 #631C4D, closest first.
No curated palette has a color within ΔE 0.04 of #631C4D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.024
- Velvet #750851 ΔE 0.042
- Rich Purple #720058 ΔE 0.045
- Merlot #730039 ΔE 0.050
- Wine #80013F ΔE 0.066
- Plum Purple #4E0550 ΔE 0.067
- Red Purple #820747 ΔE 0.067
- Burgundy #610023 ΔE 0.072
Use #631C4D 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.