#631775
Closest named color: Rich Purple (#720058). oklch(37.8% 0.158 318.9), rgb(99, 23, 117).
Aa
White text reads best on this color (10.99:1).
About this color
#631775 is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.158 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Purple (#720058), ΔE 0.062 away. White text reads best on it, at 10.99:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rich Purple (#720058) |
| Black text | 1.90:1 |
| White text | 10.99:1 |
Values
| HEX | #631775 |
| RGB | rgb(99, 23, 117) |
| HSL | hsl(289, 67%, 27%) |
| OKLCH | oklch(37.8% 0.158 318.9) |
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 #631775 | 10.99:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #631775 | 1.90:1 | Fails | Lc 9.6 | Not readable |
| #631775 text on white | 10.99:1 | AAA | Lc 94.4 | Preferred for body text |
| #631775 text on black | 1.90:1 | Fails | Lc -8.2 | 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
#F4E3F9
oklch(93.6% 0.034 318.5)
-
Step 200
200
#ECCCF5
oklch(88.5% 0.065 318.8)
-
Step 300
300
#E2A8F1
oklch(81% 0.118 319.2)
-
Step 400
400
#D174EA
oklch(70.7% 0.189 318.8)
-
Step 500
500
#C445E3
oklch(63.1% 0.242 319)
-
Step 600
600
#B00ED1
oklch(55.7% 0.263 319.1)
-
Step 700
700
#9500B2
oklch(49% 0.236 319)
-
Step 800
800
#7A0692
oklch(42.6% 0.202 318.9)
-
Step 900
900 (this color)
#631775
oklch(37.8% 0.158 318.9)
-
Step 950
950
#3A1044
oklch(26.9% 0.1 319.3)
#631775 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) | #003778 | 0.151 |
| Deuteranopia (no green cones) | #1E3F73 | 0.137 |
| Tritanopia (no blue cones) | #632B46 | 0.097 |
| Achromatopsia (no color) | #3C3C3C | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631775
#631775
oklch(37.8% 0.158 318.9)
- #184F00
#184F00
oklch(37.6% 0.119 139)
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 #631775, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Purple #720058 ΔE 0.062
- Grape Purple #5D1451 ΔE 0.063
- Purple #800080 ΔE 0.063
- Royal Purple #4B006E ΔE 0.064
- Indigo #4B0082 ΔE 0.067
- Velvet #750851 ΔE 0.075
- Rebecca Purple #663399 ΔE 0.076
- Plum Purple #4E0550 ΔE 0.081
Use #631775 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.