#6731AC
Closest named color: Rebecca Purple (#663399). oklch(45.4% 0.185 298.8), rgb(103, 49, 172).
Aa
White text reads best on this color (8.04:1).
About this color
#6731AC is a medium-dark, vivid purple. In OKLCH its lightness is 45%, its chroma 0.185 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.031 away. White text reads best on it, at 8.04:1.
| Hue family | Purples |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.61:1 |
| White text | 8.04:1 |
Values
| HEX | #6731AC |
| RGB | rgb(103, 49, 172) |
| HSL | hsl(266, 56%, 43%) |
| OKLCH | oklch(45.4% 0.185 298.8) |
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 #6731AC | 8.04:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #6731AC | 2.61:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #6731AC text on white | 8.04:1 | AAA | Lc 87.1 | Fine for body text |
| #6731AC text on black | 2.61:1 | Fails | Lc -15.0 | 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 800.
-
Step 50
50
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#ECE6FC
oklch(93.6% 0.03 298.3)
-
Step 200
200
#DED1FC
oklch(88.5% 0.06 299)
-
Step 300
300
#CAB1FD
oklch(80.9% 0.108 299.1)
-
Step 400
400
#B084FC
oklch(70.6% 0.173 298.8)
-
Step 500
500
#9E5FF9
oklch(63.1% 0.22 298.7)
-
Step 600
600
#8B3DE8
oklch(55.6% 0.24 299.1)
-
Step 700
700
#762CCA
oklch(49.1% 0.224 298.9)
-
Step 800
800 (this color)
#6731AC
oklch(45.4% 0.185 298.8)
-
Step 900
900
#4E2781
oklch(37.6% 0.144 299.2)
-
Step 950
950
#2D194C
oklch(27.1% 0.091 298.2)
#6731AC 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) | #0050B0 | 0.124 |
| Deuteranopia (no green cones) | #004FAA | 0.124 |
| Tritanopia (no blue cones) | #574F6B | 0.139 |
| Achromatopsia (no color) | #505050 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6731AC
#6731AC
oklch(45.4% 0.185 298.8)
- #515E00
#515E00
oklch(45.5% 0.106 118.6)
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 #6731AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Grape #7209B7 ΔE 0.048
- Bluey Purple #6241C7 ΔE 0.053
- Blue With A Hint Of Purple #533CC6 ΔE 0.059
- Chrysanthemum #560BAD ΔE 0.062
- Blurple #5539CC ΔE 0.063
- Purple Blue #5D21D0 ΔE 0.065
- Blueberry #464196 ΔE 0.073
Use #6731AC 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.