#6B243C
Closest named color: Merlot (#730039). oklch(37.5% 0.104 2.6), rgb(107, 36, 60).
Aa
White text reads best on this color (10.80:1).
About this color
#6B243C is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.104 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.045 away. White text reads best on it, at 10.80:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.104) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.94:1 |
| White text | 10.80:1 |
Values
| HEX | #6B243C |
| RGB | rgb(107, 36, 60) |
| HSL | hsl(340, 50%, 28%) |
| OKLCH | oklch(37.5% 0.104 2.6) |
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 #6B243C | 10.80:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #6B243C | 1.94:1 | Fails | Lc 9.5 | Not readable |
| #6B243C text on white | 10.80:1 | AAA | Lc 94.4 | Preferred for body text |
| #6B243C text on black | 1.94:1 | Fails | Lc -8.2 | 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
#F8E4E8
oklch(93.6% 0.022 3.8)
-
Step 200
200
#F3CED6
oklch(88.5% 0.043 3.4)
-
Step 300
300
#ECACBC
oklch(80.9% 0.078 2.5)
-
Step 400
400
#E07E9A
oklch(70.8% 0.124 2.4)
-
Step 500
500
#D45981
oklch(63.1% 0.159 2.5)
-
Step 600
600
#BF3A6A
oklch(55.6% 0.173 2.6)
-
Step 700
700
#A42B59
oklch(49% 0.16 2.2)
-
Step 800
800
#862648
oklch(42.8% 0.133 3.1)
-
Step 900
900 (this color)
#6B243C
oklch(37.5% 0.104 2.6)
-
Step 950
950
#3F1624
oklch(26.9% 0.066 1.2)
#6B243C 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) | #32353D | 0.115 |
| Deuteranopia (no green cones) | #45423A | 0.104 |
| Tritanopia (no blue cones) | #741C2D | 0.029 |
| Achromatopsia (no color) | #3D3D3D | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B243C
#6B243C
oklch(37.5% 0.104 2.6)
- #004C44
#004C44
oklch(37.4% 0.067 182.9)
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 #6B243C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.045
- Bordeaux #7B002C ΔE 0.049
- Purple Brown #673A3F ΔE 0.052
- Wine Red #7B0323 ΔE 0.052
- Wine #80013F ΔE 0.054
- Red Purple #820747 ΔE 0.059
- Velvet #750851 ΔE 0.060
- Claret #680018 ΔE 0.064
Use #6B243C 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.