#6B1640
Closest named color: Merlot (#730039). oklch(36% 0.124 355.4), rgb(107, 22, 64).
Aa
White text reads best on this color (11.57:1).
About this color
#6B1640 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.124 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.025 away. White text reads best on it, at 11.57:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.124) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.81:1 |
| White text | 11.57:1 |
Values
| HEX | #6B1640 |
| RGB | rgb(107, 22, 64) |
| HSL | hsl(330, 66%, 25%) |
| OKLCH | oklch(36% 0.124 355.4) |
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 #6B1640 | 11.57:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #6B1640 | 1.81:1 | Fails | Lc 8.4 | Not readable |
| #6B1640 text on white | 11.57:1 | AAA | Lc 95.5 | Preferred for body text |
| #6B1640 text on black | 1.81:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EA
oklch(93.6% 0.027 357.2)
-
Step 200
200
#F6CCDA
oklch(88.5% 0.051 356.2)
-
Step 300
300
#F2A8C3
oklch(81% 0.093 355.8)
-
Step 400
400
#E775A5
oklch(70.7% 0.15 355.1)
-
Step 500
500
#DC4B8E
oklch(63.1% 0.19 355.5)
-
Step 600
600
#C72379
oklch(55.6% 0.207 355.1)
-
Step 700
700
#AC1165
oklch(49.1% 0.193 355.6)
-
Step 800
800
#8B1553
oklch(42.6% 0.159 355)
-
Step 900
900 (this color)
#6B1640
oklch(36% 0.124 355.4)
-
Step 950
950
#421228
oklch(27% 0.078 355.3)
#6B1640 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) | #272F41 | 0.140 |
| Deuteranopia (no green cones) | #3F3F3E | 0.125 |
| Tritanopia (no blue cones) | #740B29 | 0.041 |
| Achromatopsia (no color) | #393939 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1640
#6B1640
oklch(36% 0.124 355.4)
- #00493B
#00493B
oklch(36.2% 0.069 174.4)
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 #6B1640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.025
- Velvet #750851 ΔE 0.039
- Wine #80013F ΔE 0.045
- Bordeaux #7B002C ΔE 0.046
- Grape Purple #5D1451 ΔE 0.047
- Red Purple #820747 ΔE 0.050
- Rich Purple #720058 ΔE 0.051
- Burgundy #610023 ΔE 0.055
Use #6B1640 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.