#6731A8
Closest named color: Rebecca Purple (#663399). oklch(45% 0.18 299.9), rgb(103, 49, 168).
Aa
White text reads best on this color (8.13:1).
About this color
#6731A8 is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.180 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.025 away. White text reads best on it, at 8.13:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #6731A8 |
| RGB | rgb(103, 49, 168) |
| HSL | hsl(267, 55%, 43%) |
| OKLCH | oklch(45% 0.18 299.9) |
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 #6731A8 | 8.13:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #6731A8 | 2.58:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #6731A8 text on white | 8.13:1 | AAA | Lc 87.4 | Fine for body text |
| #6731A8 text on black | 2.58:1 | Fails | Lc -14.7 | 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
#F7F4FE
oklch(97.2% 0.014 299.8)
-
Step 100
100
#EDE6FC
oklch(93.7% 0.03 300.3)
-
Step 200
200
#DFD1FB
oklch(88.5% 0.059 300.4)
-
Step 300
300
#CBB1FB
oklch(80.9% 0.106 300.2)
-
Step 400
400
#B185F9
oklch(70.7% 0.168 299.6)
-
Step 500
500
#A060F5
oklch(63.1% 0.215 300.1)
-
Step 600
600
#8C3FE4
oklch(55.6% 0.234 300)
-
Step 700
700
#772EC6
oklch(49% 0.218 300)
-
Step 800
800 (this color)
#6731A8
oklch(45% 0.18 299.9)
-
Step 900
900
#4E287F
oklch(37.6% 0.14 299.7)
-
Step 950
950
#2E194B
oklch(27.1% 0.089 299.8)
#6731A8 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) | #004FAC | 0.125 |
| Deuteranopia (no green cones) | #004FA6 | 0.126 |
| Tritanopia (no blue cones) | #584E69 | 0.135 |
| Achromatopsia (no color) | #4F4F4F | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6731A8
#6731A8
oklch(45% 0.18 299.9)
- #4E5D00
#4E5D00
oklch(45% 0.107 120)
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 #6731A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.025
- Grape #7209B7 ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.059
- Chrysanthemum #560BAD ΔE 0.062
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Blurple #5539CC ΔE 0.069
- Blueberry #464196 ΔE 0.070
- Purple Blue #5D21D0 ΔE 0.071
Use #6731A8 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.