#631870
Closest named color: Grape Purple (#5D1451). oklch(37.5% 0.152 321.2), rgb(99, 24, 112).
Aa
White text reads best on this color (11.08:1).
About this color
#631870 is a dark, vivid purple. In OKLCH its lightness is 37%, its chroma 0.152 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.054 away. White text reads best on it, at 11.08:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.89:1 |
| White text | 11.08:1 |
Values
| HEX | #631870 |
| RGB | rgb(99, 24, 112) |
| HSL | hsl(291, 65%, 27%) |
| OKLCH | oklch(37.5% 0.152 321.2) |
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 #631870 | 11.08:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #631870 | 1.89:1 | Fails | Lc 9.3 | Not readable |
| #631870 text on white | 11.08:1 | AAA | Lc 94.6 | Preferred for body text |
| #631870 text on black | 1.89:1 | Fails | Lc -8.0 | 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
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F5E3F8
oklch(93.6% 0.034 321.4)
-
Step 200
200
#EDCCF3
oklch(88.5% 0.063 321.1)
-
Step 300
300
#E3A8ED
oklch(80.9% 0.114 321.5)
-
Step 400
400
#D375E4
oklch(70.7% 0.182 321.3)
-
Step 500
500
#C548DC
oklch(63.1% 0.233 321)
-
Step 600
600
#B118C9
oklch(55.6% 0.253 321.3)
-
Step 700
700
#9800AE
oklch(49.2% 0.235 321.2)
-
Step 800
800
#7B0D8D
oklch(42.7% 0.195 321)
-
Step 900
900 (this color)
#631870
oklch(37.5% 0.152 321.2)
-
Step 950
950
#3B1142
oklch(27.1% 0.097 321.7)
#631870 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) | #003772 | 0.152 |
| Deuteranopia (no green cones) | #233E6E | 0.133 |
| Tritanopia (no blue cones) | #642943 | 0.091 |
| Achromatopsia (no color) | #3C3C3C | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631870
#631870
oklch(37.5% 0.152 321.2)
- #0B5000
#0B5000
oklch(37.6% 0.124 141.3)
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 #631870, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.054
- Rich Purple #720058 ΔE 0.055
- Royal Purple #4B006E ΔE 0.065
- Purple #800080 ΔE 0.066
- Velvet #750851 ΔE 0.068
- Indigo #4B0082 ΔE 0.072
- Plum Purple #4E0550 ΔE 0.076
- Rebecca Purple #663399 ΔE 0.082
Use #631870 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.