#631E67
Closest named color: Grape Purple (#5D1451). oklch(37.5% 0.136 325.6), rgb(99, 30, 103).
Aa
White text reads best on this color (10.98:1).
About this color
#631E67 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.136 and its hue 326°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.042 away. White text reads best on it, at 10.98:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.91:1 |
| White text | 10.98:1 |
Values
| HEX | #631E67 |
| RGB | rgb(99, 30, 103) |
| HSL | hsl(297, 55%, 26%) |
| OKLCH | oklch(37.5% 0.136 325.6) |
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 #631E67 | 10.98:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #631E67 | 1.91:1 | Fails | Lc 9.3 | Not readable |
| #631E67 text on white | 10.98:1 | AAA | Lc 94.6 | Preferred for body text |
| #631E67 text on black | 1.91:1 | 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
#FAF2FB
oklch(97% 0.015 322.3)
-
Step 100
100
#F5E3F5
oklch(93.5% 0.031 325.8)
-
Step 200
200
#EDCDEE
oklch(88.5% 0.056 325.1)
-
Step 300
300
#E3AAE5
oklch(81% 0.102 325.4)
-
Step 400
400
#D379D7
oklch(70.7% 0.163 325.6)
-
Step 500
500
#C650CC
oklch(63.1% 0.209 325.7)
-
Step 600
600
#B12BB9
oklch(55.6% 0.227 325.6)
-
Step 700
700
#981A9F
oklch(49.1% 0.211 325.7)
-
Step 800
800
#7B1B81
oklch(42.7% 0.174 325.4)
-
Step 900
900 (this color)
#631E67
oklch(37.5% 0.136 325.6)
-
Step 950
950
#3B143D
oklch(27.1% 0.086 325.7)
#631E67 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) | #0F3769 | 0.141 |
| Deuteranopia (no green cones) | #2D3F65 | 0.120 |
| Tritanopia (no blue cones) | #652940 | 0.078 |
| Achromatopsia (no color) | #3C3C3C | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631E67
#631E67
oklch(37.5% 0.136 325.6)
- #005013
#005013
oklch(37.5% 0.116 145.6)
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 #631E67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.042
- Rich Purple #720058 ΔE 0.047
- Velvet #750851 ΔE 0.056
- Plum Purple #4E0550 ΔE 0.072
- Royal Purple #4B006E ΔE 0.074
- Purple #800080 ΔE 0.074
- Indigo #4B0082 ΔE 0.086
- Merlot #730039 ΔE 0.087
Use #631E67 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.