#631FA7
Closest named color: Chrysanthemum (#560BAD). oklch(42.6% 0.198 300.4), rgb(99, 31, 167).
Aa
White text reads best on this color (9.19:1).
About this color
#631FA7 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.198 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Chrysanthemum (#560BAD), ΔE 0.037 away. White text reads best on it, at 9.19:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.198) |
| Temperature | in between |
| Nearest name | Chrysanthemum (#560BAD) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #631FA7 |
| RGB | rgb(99, 31, 167) |
| HSL | hsl(270, 69%, 39%) |
| OKLCH | oklch(42.6% 0.198 300.4) |
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 #631FA7 | 9.19:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #631FA7 | 2.28:1 | Fails | Lc 14.0 | Not readable |
| #631FA7 text on white | 9.19:1 | AAA | Lc 90.0 | Preferred for body text |
| #631FA7 text on black | 2.28:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EDE5FD
oklch(93.5% 0.033 300.9)
-
Step 200
200
#DFD0FE
oklch(88.4% 0.064 300)
-
Step 300
300
#CCB0FF
oklch(80.9% 0.113 300.2)
-
Step 400
400
#B481FF
oklch(70.7% 0.182 300.5)
-
Step 500
500
#A358FF
oklch(63.1% 0.236 300.3)
-
Step 600
600
#9032EE
oklch(55.6% 0.257 300.5)
-
Step 700
700
#7B20CF
oklch(49.1% 0.239 300.7)
-
Step 800
800 (this color)
#631FA7
oklch(42.6% 0.198 300.4)
-
Step 900
900
#512385
oklch(37.8% 0.154 300.5)
-
Step 950
950
#2F164E
oklch(27% 0.099 300.4)
#631FA7 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) | #0047AB | 0.131 |
| Deuteranopia (no green cones) | #0047A4 | 0.132 |
| Tritanopia (no blue cones) | #534564 | 0.145 |
| Achromatopsia (no color) | #484848 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #631FA7
#631FA7
oklch(42.6% 0.198 300.4)
- #475600
#475600
oklch(42.5% 0.102 120.6)
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 #631FA7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chrysanthemum #560BAD ΔE 0.037
- Grape #7209B7 ΔE 0.039
- Rebecca Purple #663399 ΔE 0.041
- Imperial Purple #480CA8 ΔE 0.062
- Purple Blue #5D21D0 ΔE 0.069
- Violet Blue #510AC9 ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.076
- Bluey Purple #6241C7 ΔE 0.079
Use #631FA7 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.