#631745
Closest named color: Grape Purple (#5D1451). oklch(34.9% 0.119 347.9), rgb(99, 23, 69).
Aa
White text reads best on this color (12.07:1).
About this color
#631745 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.119 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 12.07:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.119) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.73:1 |
| White text | 12.07:1 |
Values
| HEX | #631745 |
| RGB | rgb(99, 23, 69) |
| HSL | hsl(324, 62%, 24%) |
| OKLCH | oklch(34.9% 0.119 347.9) |
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 #631745 | 12.07:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #631745 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #631745 text on white | 12.07:1 | AAA | Lc 96.7 | Preferred for body text |
| #631745 text on black | 1.73:1 | 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
#F3CCDF
oklch(88.4% 0.05 347.3)
-
Step 300
300
#ECA9CB
oklch(80.8% 0.09 347.4)
-
Step 400
400
#E079B0
oklch(70.7% 0.142 348.1)
-
Step 500
500
#D4519D
oklch(63.1% 0.183 347.7)
-
Step 600
600
#BF2F88
oklch(55.6% 0.198 347.7)
-
Step 700
700
#A41F73
oklch(49% 0.184 347.7)
-
Step 800
800
#861D5E
oklch(42.8% 0.153 347.7)
-
Step 900
900 (this color)
#631745
oklch(34.9% 0.119 347.9)
-
Step 950
950
#3F142D
oklch(26.9% 0.075 347.3)
#631745 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) | #222E46 | 0.132 |
| Deuteranopia (no green cones) | #383B43 | 0.117 |
| Tritanopia (no blue cones) | #6A142B | 0.047 |
| Achromatopsia (no color) | #363636 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631745
#631745
oklch(34.9% 0.119 347.9)
- #004633
#004633
oklch(35% 0.071 167.6)
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 #631745, 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 0.041
- Velvet #750851 ΔE 0.044
- Rich Purple #720058 ΔE 0.050
- Burgundy #610023 ΔE 0.058
- Wine #80013F ΔE 0.063
- Bordeaux #7B002C ΔE 0.066
- Red Purple #820747 ΔE 0.066
Use #631745 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.