#631F4F
Closest named color: Grape Purple (#5D1451). oklch(36.3% 0.114 341.3), rgb(99, 31, 79).
Aa
White text reads best on this color (11.41:1).
About this color
#631F4F is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.114 and its hue 341°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.027 away. White text reads best on it, at 11.41:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.83:1 |
| White text | 11.41:1 |
Values
| HEX | #631F4F |
| RGB | rgb(99, 31, 79) |
| HSL | hsl(318, 52%, 25%) |
| OKLCH | oklch(36.3% 0.114 341.3) |
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 #631F4F | 11.41:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #631F4F | 1.83:1 | Fails | Lc 8.3 | Not readable |
| #631F4F text on white | 11.41:1 | AAA | Lc 95.6 | Preferred for body text |
| #631F4F 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
#FBF3F8
oklch(97.2% 0.011 339.3)
-
Step 100
100
#F6E4EF
oklch(93.6% 0.024 340.3)
-
Step 200
200
#F0CDE2
oklch(88.4% 0.048 341.4)
-
Step 300
300
#E8ABD1
oklch(80.9% 0.086 341.4)
-
Step 400
400
#D97CB9
oklch(70.6% 0.137 341.4)
-
Step 500
500
#CC57A8
oklch(63.1% 0.174 341.2)
-
Step 600
600
#B73793
oklch(55.5% 0.19 341.2)
-
Step 700
700
#9E287D
oklch(49.2% 0.177 341.6)
-
Step 800
800
#802366
oklch(42.7% 0.147 341.2)
-
Step 900
900 (this color)
#631F4F
oklch(36.3% 0.114 341.3)
-
Step 950
950
#3D1631
oklch(27.1% 0.072 341)
#631F4F 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) | #243350 | 0.123 |
| Deuteranopia (no green cones) | #383E4D | 0.110 |
| Tritanopia (no blue cones) | #692034 | 0.050 |
| Achromatopsia (no color) | #3A3A3A | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631F4F
#631F4F
oklch(36.3% 0.114 341.3)
- #004A30
#004A30
oklch(36.1% 0.08 161.7)
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 #631F4F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.027
- Velvet #750851 ΔE 0.043
- Rich Purple #720058 ΔE 0.047
- Merlot #730039 ΔE 0.054
- Red Purple #820747 ΔE 0.067
- Wine #80013F ΔE 0.068
- Plum Purple #4E0550 ΔE 0.070
- Bordeaux #7B002C ΔE 0.076
Use #631F4F 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.