#811BC8
Closest named color: Dark Violet (#9400D3). oklch(49% 0.237 304.9), rgb(129, 27, 200).
Aa
White text reads best on this color (7.18:1).
About this color
#811BC8 is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.237 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Violet (#9400D3), ΔE 0.041 away. White text reads best on it, at 7.18:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.237) |
| Temperature | in between |
| Nearest name | Dark Violet (#9400D3) |
| Black text | 2.92:1 |
| White text | 7.18:1 |
Values
| HEX | #811BC8 |
| RGB | rgb(129, 27, 200) |
| HSL | hsl(275, 76%, 45%) |
| OKLCH | oklch(49% 0.237 304.9) |
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 #811BC8 | 7.18:1 | AAA | Lc -88.3 | Fine for body text |
| Black text on #811BC8 | 2.92:1 | Fails | Lc 20.7 | Dividers and decoration only |
| #811BC8 text on white | 7.18:1 | AAA | Lc 83.3 | Fine for body text |
| #811BC8 text on black | 2.92:1 | Fails | Lc -18.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#EFE5FC
oklch(93.7% 0.032 305.3)
-
Step 200
200
#E3CFFC
oklch(88.5% 0.065 305.3)
-
Step 300
300
#D2AEFC
oklch(81% 0.114 305.1)
-
Step 400
400
#BB7EFB
oklch(70.7% 0.183 304.7)
-
Step 500
500
#AB55F8
oklch(63.1% 0.234 304.7)
-
Step 600
600
#972EE7
oklch(55.6% 0.255 304.7)
-
Step 700
700 (this color)
#811BC8
oklch(49% 0.237 304.9)
-
Step 800
800
#691DA2
oklch(42.7% 0.196 304.9)
-
Step 900
900
#552181
oklch(37.7% 0.153 304.7)
-
Step 950
950
#32154B
oklch(27% 0.097 305.5)
#811BC8 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) | #0055CC | 0.170 |
| Deuteranopia (no green cones) | #0057C5 | 0.172 |
| Tritanopia (no blue cones) | #734F77 | 0.166 |
| Achromatopsia (no color) | #575757 | 0.239 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #811BC8
#811BC8
oklch(49% 0.237 304.9)
- #516B00
#516B00
oklch(48.9% 0.122 124.6)
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 #811BC8, closest first.
No curated palette has a color within ΔE 0.04 of #811BC8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Violet #9400D3 ΔE 0.041
- Grape #7209B7 ΔE 0.044
- Blue Violet #8A2BE2 ΔE 0.049
- Dark Orchid #9932CC ΔE 0.059
- Burple #6832E3 ΔE 0.072
- Purple Blue #5D21D0 ΔE 0.074
- Bluey Purple #6241C7 ΔE 0.074
- Purply #983FB2 ΔE 0.083
Use #811BC8 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.