#6B243F
Closest named color: Merlot (#730039). oklch(37.6% 0.105 359.9), rgb(107, 36, 63).
Aa
White text reads best on this color (10.77:1).
About this color
#6B243F is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.105 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.044 away. White text reads best on it, at 10.77:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #6B243F |
| RGB | rgb(107, 36, 63) |
| HSL | hsl(337, 50%, 28%) |
| OKLCH | oklch(37.6% 0.105 359.9) |
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 #6B243F | 10.77:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #6B243F | 1.94:1 | Fails | Lc 9.6 | Not readable |
| #6B243F text on white | 10.77:1 | AAA | Lc 94.3 | Preferred for body text |
| #6B243F text on black | 1.94:1 | Fails | Lc -8.3 | 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 900.
-
Step 50
50
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4E9
oklch(93.6% 0.023 0.5)
-
Step 200
200
#F3CED8
oklch(88.6% 0.043 359.9)
-
Step 300
300
#ECACBE
oklch(80.9% 0.078 0.5)
-
Step 400
400
#DF7D9D
oklch(70.6% 0.126 359.9)
-
Step 500
500
#D35986
oklch(63.1% 0.16 359.7)
-
Step 600
600
#BF396F
oklch(55.6% 0.175 0)
-
Step 700
700
#A42A5D
oklch(49.1% 0.163 359.9)
-
Step 800
800
#85254C
oklch(42.6% 0.134 359.8)
-
Step 900
900 (this color)
#6B243F
oklch(37.6% 0.105 359.9)
-
Step 950
950
#3F1625
oklch(26.9% 0.067 359.7)
#6B243F 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) | #313540 | 0.116 |
| Deuteranopia (no green cones) | #44433D | 0.107 |
| Tritanopia (no blue cones) | #741D2F | 0.030 |
| Achromatopsia (no color) | #3E3E3E | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B243F
#6B243F
oklch(37.6% 0.105 359.9)
- #004D42
#004D42
oklch(37.6% 0.069 179)
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 #6B243F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.044
- Bordeaux #7B002C ΔE 0.050
- Wine #80013F ΔE 0.053
- Purple Brown #673A3F ΔE 0.054
- Wine Red #7B0323 ΔE 0.055
- Velvet #750851 ΔE 0.056
- Red Purple #820747 ΔE 0.057
- Grape Purple #5D1451 ΔE 0.063
Use #6B243F 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.