#6B1551
Closest named color: Velvet (#750851). oklch(36.7% 0.135 343.2), rgb(107, 21, 81).
Aa
White text reads best on this color (11.34:1).
About this color
#6B1551 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.135 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Velvet (#750851), ΔE 0.022 away. White text reads best on it, at 11.34:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Velvet (#750851) |
| Black text | 1.85:1 |
| White text | 11.34:1 |
Values
| HEX | #6B1551 |
| RGB | rgb(107, 21, 81) |
| HSL | hsl(318, 67%, 25%) |
| OKLCH | oklch(36.7% 0.135 343.2) |
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 #6B1551 | 11.34:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #6B1551 | 1.85:1 | Fails | Lc 8.9 | Not readable |
| #6B1551 text on white | 11.34:1 | AAA | Lc 95.0 | Preferred for body text |
| #6B1551 text on black | 1.85:1 | Fails | Lc -7.6 | 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 900.
-
Step 50
50
#FDF2F8
oklch(97.1% 0.014 343.2)
-
Step 100
100
#F9E3EF
oklch(93.7% 0.029 343.6)
-
Step 200
200
#F5CBE3
oklch(88.5% 0.057 343)
-
Step 300
300
#EFA6D2
oklch(80.8% 0.102 342.8)
-
Step 400
400
#E473BB
oklch(70.8% 0.163 343.1)
-
Step 500
500
#D847A9
oklch(63.1% 0.206 343.2)
-
Step 600
600
#C31A95
oklch(55.6% 0.225 342.9)
-
Step 700
700
#A8027F
oklch(49.1% 0.209 342.9)
-
Step 800
800
#890E67
oklch(42.8% 0.174 343.2)
-
Step 900
900 (this color)
#6B1551
oklch(36.7% 0.135 343.2)
-
Step 950
950
#411131
oklch(27.1% 0.085 343.4)
#6B1551 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) | #1F3153 | 0.150 |
| Deuteranopia (no green cones) | #3A3F4F | 0.129 |
| Tritanopia (no blue cones) | #721531 | 0.059 |
| Achromatopsia (no color) | #3A3A3A | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1551
#6B1551
oklch(36.7% 0.135 343.2)
- #004C33
#004C33
oklch(36.8% 0.08 163.1)
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 #6B1551, closest first.
No curated palette has a color within ΔE 0.04 of #6B1551.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Velvet #750851 ΔE 0.022
- Rich Purple #720058 ΔE 0.026
- Grape Purple #5D1451 ΔE 0.032
- Merlot #730039 ΔE 0.044
- Red Purple #820747 ΔE 0.053
- Wine #80013F ΔE 0.055
- Bordeaux #7B002C ΔE 0.070
- Plum Purple #4E0550 ΔE 0.075
Use #6B1551 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.