#6B0018
Closest named color: Claret (#680018). oklch(33.4% 0.134 19.3), rgb(107, 0, 24).
Aa
White text reads best on this color (12.81:1).
About this color
#6B0018 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.134 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.007 away. White text reads best on it, at 12.81:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.134) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.63:1 |
| White text | 12.81:1 |
Values
| HEX | #6B0018 |
| RGB | rgb(107, 0, 24) |
| HSL | hsl(347, 100%, 21%) |
| OKLCH | oklch(33.4% 0.134 19.3) |
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 #6B0018 | 12.81:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #6B0018 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #6B0018 text on white | 12.81:1 | AAA | Lc 96.8 | Preferred for body text |
| #6B0018 text on black | 1.63:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FDE3E2
oklch(93.7% 0.029 20.3)
-
Step 200
200
#FCCBCA
oklch(88.4% 0.056 19.6)
-
Step 300
300
#FBA6A7
oklch(80.9% 0.101 18.7)
-
Step 400
400
#F47177
oklch(70.6% 0.161 19.3)
-
Step 500
500
#EB4155
oklch(63% 0.205 19.1)
-
Step 600
600
#D7003A
oklch(55.7% 0.223 19.3)
-
Step 700
700
#B6002F
oklch(49.1% 0.197 19.5)
-
Step 800
800
#960026
oklch(42.6% 0.171 19.1)
-
Step 900
900 (this color)
#6B0018
oklch(33.4% 0.134 19.3)
-
Step 950
950
#470F15
oklch(26.9% 0.084 19.1)
#6B0018 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) | #272418 | 0.150 |
| Deuteranopia (no green cones) | #403A14 | 0.138 |
| Tritanopia (no blue cones) | #77000B | 0.032 |
| Achromatopsia (no color) | #323232 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B0018
#6B0018
oklch(33.4% 0.134 19.3)
- #003F42
#003F42
oklch(33.4% 0.057 200.1)
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 #6B0018, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.007
- Burgundy #610023 ΔE 0.030
- Reddy Brown #6E1005 ΔE 0.031
- Blood #770001 ΔE 0.036
- Wine Red #7B0323 ΔE 0.040
- Bordeaux #7B002C ΔE 0.045
- Merlot #730039 ΔE 0.053
- Maroon #800000 ΔE 0.053
Use #6B0018 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.