#6B1718
Closest named color: Reddy Brown (#6E1005). oklch(35.1% 0.118 25.1), rgb(107, 23, 24).
Aa
White text reads best on this color (11.92:1).
About this color
#6B1718 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.118 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.017 away. White text reads best on it, at 11.92:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.76:1 |
| White text | 11.92:1 |
Values
| HEX | #6B1718 |
| RGB | rgb(107, 23, 24) |
| HSL | hsl(359, 65%, 25%) |
| OKLCH | oklch(35.1% 0.118 25.1) |
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 #6B1718 | 11.92:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #6B1718 | 1.76:1 | Fails | Lc 7.7 | Not readable |
| #6B1718 text on white | 11.92:1 | AAA | Lc 96.2 | Preferred for body text |
| #6B1718 text on black | 1.76:1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CDC9
oklch(88.4% 0.049 24.3)
-
Step 300
300
#F5ABA4
oklch(81% 0.088 25.2)
-
Step 400
400
#EB7A73
oklch(70.6% 0.141 24.9)
-
Step 500
500
#E2524E
oklch(63.2% 0.18 25.3)
-
Step 600
600
#CD2D32
oklch(55.6% 0.196 25)
-
Step 700
700
#B11C24
oklch(49.1% 0.182 25.2)
-
Step 800
800
#901C20
oklch(42.8% 0.151 24.9)
-
Step 900
900 (this color)
#6B1718
oklch(35.1% 0.118 25.1)
-
Step 950
950
#441413
oklch(27% 0.075 24.6)
#6B1718 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) | #302B17 | 0.127 |
| Deuteranopia (no green cones) | #453D15 | 0.115 |
| Tritanopia (no blue cones) | #760018 | 0.029 |
| Achromatopsia (no color) | #373737 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B1718
#6B1718
oklch(35.1% 0.118 25.1)
- #004349
#004349
oklch(34.9% 0.06 204.9)
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 #6B1718, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.017
- Claret #680018 ΔE 0.030
- Blood #770001 ΔE 0.031
- Wine Red #7B0323 ΔE 0.041
- Maroon #800000 ΔE 0.046
- Chestnut #742802 ΔE 0.049
- Burgundy #610023 ΔE 0.049
- Bordeaux #7B002C ΔE 0.050
Use #6B1718 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.