#631F48
Closest named color: Grape Purple (#5D1451). oklch(35.9% 0.109 346.8), rgb(99, 31, 72).
Aa
White text reads best on this color (11.53:1).
About this color
#631F48 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.109 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.034 away. White text reads best on it, at 11.53:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.109) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.82:1 |
| White text | 11.53:1 |
Values
| HEX | #631F48 |
| RGB | rgb(99, 31, 72) |
| HSL | hsl(324, 52%, 25%) |
| OKLCH | oklch(35.9% 0.109 346.8) |
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 #631F48 | 11.53:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #631F48 | 1.82:1 | Fails | Lc 8.0 | Not readable |
| #631F48 text on white | 11.53:1 | AAA | Lc 95.9 | Preferred for body text |
| #631F48 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
#FBF3F7
oklch(97.1% 0.01 345.4)
-
Step 100
100
#F7E4ED
oklch(93.7% 0.024 347.2)
-
Step 200
200
#F1CEDF
oklch(88.6% 0.045 347.2)
-
Step 300
300
#E9ACCB
oklch(81% 0.081 347.2)
-
Step 400
400
#DB7DB1
oklch(70.7% 0.132 346.7)
-
Step 500
500
#CE589D
oklch(63% 0.168 346.8)
-
Step 600
600
#B93988
oklch(55.6% 0.182 346.7)
-
Step 700
700
#9F2A73
oklch(49.1% 0.169 346.9)
-
Step 800
800
#81255E
oklch(42.7% 0.14 346.6)
-
Step 900
900 (this color)
#631F48
oklch(35.9% 0.109 346.8)
-
Step 950
950
#3D162D
oklch(26.9% 0.069 346.3)
#631F48 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) | #273249 | 0.120 |
| Deuteranopia (no green cones) | #3A3D46 | 0.107 |
| Tritanopia (no blue cones) | #6A1D30 | 0.044 |
| Achromatopsia (no color) | #393939 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631F48
#631F48
oklch(35.9% 0.109 346.8)
- #004934
#004934
oklch(36% 0.074 166.2)
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 #631F48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.034
- Velvet #750851 ΔE 0.047
- Merlot #730039 ΔE 0.047
- Rich Purple #720058 ΔE 0.054
- Wine #80013F ΔE 0.064
- Red Purple #820747 ΔE 0.066
- Burgundy #610023 ΔE 0.066
- Bordeaux #7B002C ΔE 0.068
Use #631F48 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.