#631C44
Closest named color: Grape Purple (#5D1451). oklch(35.4% 0.111 349.5), rgb(99, 28, 68).
Aa
White text reads best on this color (11.79:1).
About this color
#631C44 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.111 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.035 away. White text reads best on it, at 11.79:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.111) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.78:1 |
| White text | 11.79:1 |
Values
| HEX | #631C44 |
| RGB | rgb(99, 28, 68) |
| HSL | hsl(326, 56%, 25%) |
| OKLCH | oklch(35.4% 0.111 349.5) |
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 #631C44 | 11.79:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #631C44 | 1.78:1 | Fails | Lc 7.6 | Not readable |
| #631C44 text on white | 11.79:1 | AAA | Lc 96.3 | Preferred for body text |
| #631C44 text on black | 1.78:1 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F7E4EC
oklch(93.6% 0.023 350.1)
-
Step 200
200
#F2CDDE
oklch(88.5% 0.047 348.7)
-
Step 300
300
#EBABC9
oklch(81% 0.084 349.4)
-
Step 400
400
#DD7CAD
oklch(70.7% 0.133 349.4)
-
Step 500
500
#D15699
oklch(63.1% 0.171 349.3)
-
Step 600
600
#BC3683
oklch(55.5% 0.185 349.5)
-
Step 700
700
#A2276F
oklch(49.1% 0.172 349.6)
-
Step 800
800
#84235A
oklch(42.8% 0.143 350)
-
Step 900
900 (this color)
#631C44
oklch(35.4% 0.111 349.5)
-
Step 950
950
#3F152B
oklch(27% 0.072 350.4)
#631C44 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) | #263045 | 0.123 |
| Deuteranopia (no green cones) | #3A3C42 | 0.110 |
| Tritanopia (no blue cones) | #6A192D | 0.042 |
| Achromatopsia (no color) | #383838 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631C44
#631C44
oklch(35.4% 0.111 349.5)
- #004735
#004735
oklch(35.4% 0.071 169)
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 #631C44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.035
- Merlot #730039 ΔE 0.042
- Velvet #750851 ΔE 0.048
- Rich Purple #720058 ΔE 0.056
- Burgundy #610023 ΔE 0.059
- Wine #80013F ΔE 0.063
- Bordeaux #7B002C ΔE 0.064
- Red Purple #820747 ΔE 0.066
Use #631C44 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.