#681BA3
Closest named color: Grape (#7209B7). oklch(42.5% 0.198 304.3), rgb(104, 27, 163).
Aa
White text reads best on this color (9.23:1).
About this color
#681BA3 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.198 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape (#7209B7), ΔE 0.037 away. White text reads best on it, at 9.23:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.198) |
| Temperature | in between |
| Nearest name | Grape (#7209B7) |
| Black text | 2.27:1 |
| White text | 9.23:1 |
Values
| HEX | #681BA3 |
| RGB | rgb(104, 27, 163) |
| HSL | hsl(274, 72%, 37%) |
| OKLCH | oklch(42.5% 0.198 304.3) |
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 #681BA3 | 9.23:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #681BA3 | 2.27:1 | Fails | Lc 14.0 | Not readable |
| #681BA3 text on white | 9.23:1 | AAA | Lc 90.0 | Preferred for body text |
| #681BA3 text on black | 2.27:1 | 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
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#EFE5FD
oklch(93.7% 0.034 304.5)
-
Step 200
200
#E2CFFC
oklch(88.4% 0.064 304.3)
-
Step 300
300
#D1AEFD
oklch(80.9% 0.115 304.3)
-
Step 400
400
#BB7EFC
oklch(70.7% 0.185 304.5)
-
Step 500
500
#AB54FA
oklch(63.1% 0.238 304.4)
-
Step 600
600
#972DE9
oklch(55.7% 0.257 304.3)
-
Step 700
700
#811ACA
oklch(49.1% 0.239 304.5)
-
Step 800
800 (this color)
#681BA3
oklch(42.5% 0.198 304.3)
-
Step 900
900
#552182
oklch(37.8% 0.154 304.3)
-
Step 950
950
#31154C
oklch(26.9% 0.098 303.9)
#681BA3 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) | #0046A7 | 0.142 |
| Deuteranopia (no green cones) | #0047A0 | 0.144 |
| Tritanopia (no blue cones) | #5C4161 | 0.140 |
| Achromatopsia (no color) | #474747 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #681BA3
#681BA3
oklch(42.5% 0.198 304.3)
- #425700
#425700
oklch(42.4% 0.105 124.2)
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 #681BA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape #7209B7 ΔE 0.037
- Rebecca Purple #663399 ΔE 0.041
- Chrysanthemum #560BAD ΔE 0.046
- Imperial Purple #480CA8 ΔE 0.072
- Purple Blue #5D21D0 ΔE 0.079
- Purple #800080 ΔE 0.082
- Violet Blue #510AC9 ΔE 0.082
- Bluey Purple #6241C7 ΔE 0.087
Use #681BA3 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.