#6C1721
Closest named color: Reddy Brown (#6E1005). oklch(35.4% 0.118 19.5), rgb(108, 23, 33).
Aa
White text reads best on this color (11.78:1).
About this color
#6C1721 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.118 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.027 away. White text reads best on it, at 11.78:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.78:1 |
| White text | 11.78:1 |
Values
| HEX | #6C1721 |
| RGB | rgb(108, 23, 33) |
| HSL | hsl(353, 65%, 26%) |
| OKLCH | oklch(35.4% 0.118 19.5) |
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 #6C1721 | 11.78:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #6C1721 | 1.78:1 | Fails | Lc 8.0 | Not readable |
| #6C1721 text on white | 11.78:1 | AAA | Lc 95.9 | Preferred for body text |
| #6C1721 text on black | 1.78:1 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE4E3
oklch(93.7% 0.025 20.6)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F5AAAA
oklch(81% 0.089 19.2)
-
Step 400
400
#EB797C
oklch(70.7% 0.141 19.7)
-
Step 500
500
#E1505B
oklch(63% 0.18 19.6)
-
Step 600
600
#CD2A41
oklch(55.6% 0.197 19.6)
-
Step 700
700
#B11933
oklch(49.1% 0.183 19.6)
-
Step 800
800
#8F1A2B
oklch(42.6% 0.151 19.4)
-
Step 900
900 (this color)
#6C1721
oklch(35.4% 0.118 19.5)
-
Step 950
950
#441417
oklch(27.1% 0.074 19.9)
#6C1721 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) | #2F2C21 | 0.130 |
| Deuteranopia (no green cones) | #453E1E | 0.118 |
| Tritanopia (no blue cones) | #77001B | 0.028 |
| Achromatopsia (no color) | #383838 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C1721
#6C1721
oklch(35.4% 0.118 19.5)
- #004548
#004548
oklch(35.5% 0.06 199.7)
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 #6C1721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.027
- Claret #680018 ΔE 0.030
- Wine Red #7B0323 ΔE 0.034
- Blood #770001 ΔE 0.036
- Bordeaux #7B002C ΔE 0.041
- Burgundy #610023 ΔE 0.045
- Maroon #800000 ΔE 0.049
- Merlot #730039 ΔE 0.052
Use #6C1721 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.