#631544
Closest named color: Grape Purple (#5D1451). oklch(34.6% 0.121 348.4), rgb(99, 21, 68).
Aa
White text reads best on this color (12.20:1).
About this color
#631544 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.121 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.029 away. White text reads best on it, at 12.20:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.72:1 |
| White text | 12.20:1 |
Values
| HEX | #631544 |
| RGB | rgb(99, 21, 68) |
| HSL | hsl(324, 65%, 24%) |
| OKLCH | oklch(34.6% 0.121 348.4) |
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 #631544 | 12.20:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #631544 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #631544 text on white | 12.20:1 | AAA | Lc 96.8 | Preferred for body text |
| #631544 text on black | 1.72:1 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F4CCDF
oklch(88.5% 0.051 347.9)
-
Step 300
300
#EDA9CB
oklch(80.9% 0.09 347.9)
-
Step 400
400
#E178B0
oklch(70.7% 0.145 348.2)
-
Step 500
500
#D5509C
oklch(63.1% 0.184 348.3)
-
Step 600
600
#C12C87
oklch(55.7% 0.202 348.4)
-
Step 700
700
#A61C72
oklch(49.1% 0.187 348.6)
-
Step 800
800
#871B5D
oklch(42.7% 0.156 348.5)
-
Step 900
900 (this color)
#631544
oklch(34.6% 0.121 348.4)
-
Step 950
950
#40132D
oklch(27% 0.078 347.8)
#631544 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) | #212D45 | 0.135 |
| Deuteranopia (no green cones) | #383A42 | 0.118 |
| Tritanopia (no blue cones) | #6B112A | 0.048 |
| Achromatopsia (no color) | #353535 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631544
#631544
oklch(34.6% 0.121 348.4)
- #004533
#004533
oklch(34.7% 0.07 168.5)
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 #631544, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.029
- Merlot #730039 ΔE 0.040
- Velvet #750851 ΔE 0.044
- Rich Purple #720058 ΔE 0.050
- Burgundy #610023 ΔE 0.056
- Wine #80013F ΔE 0.063
- Bordeaux #7B002C ΔE 0.065
- Plum Purple #4E0550 ΔE 0.065
Use #631544 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.