#6B100F
Closest named color: Reddy Brown (#6E1005). oklch(34.3% 0.125 27.3), rgb(107, 16, 15).
Aa
White text reads best on this color (12.30:1).
About this color
#6B100F is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.125 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.010 away. White text reads best on it, at 12.30:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.125) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.70:1 |
| White text | 12.30:1 |
Values
| HEX | #6B100F |
| RGB | rgb(107, 16, 15) |
| HSL | hsl(1, 75%, 24%) |
| OKLCH | oklch(34.3% 0.125 27.3) |
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 #6B100F | 12.30:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #6B100F | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #6B100F text on white | 12.30:1 | AAA | Lc 96.6 | Preferred for body text |
| #6B100F text on black | 1.70:1 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE4E0
oklch(93.7% 0.027 28.9)
-
Step 200
200
#FACDC7
oklch(88.6% 0.052 27)
-
Step 300
300
#F7AAA0
oklch(81% 0.093 27.5)
-
Step 400
400
#EF786C
oklch(70.7% 0.149 27.4)
-
Step 500
500
#E64D44
oklch(63.1% 0.191 27.3)
-
Step 600
600
#D12324
oklch(55.5% 0.207 27.2)
-
Step 700
700
#B51016
oklch(49.1% 0.193 27.3)
-
Step 800
800
#931515
oklch(42.7% 0.16 27.4)
-
Step 900
900 (this color)
#6B100F
oklch(34.3% 0.125 27.3)
-
Step 950
950
#45130F
oklch(26.9% 0.078 28)
#6B100F 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) | #2E280D | 0.134 |
| Deuteranopia (no green cones) | #443C0A | 0.123 |
| Tritanopia (no blue cones) | #770011 | 0.027 |
| Achromatopsia (no color) | #353535 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B100F
#6B100F
oklch(34.3% 0.125 27.3)
- #004148
#004148
oklch(34.3% 0.059 206.9)
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 #6B100F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.010
- Claret #680018 ΔE 0.025
- Blood #770001 ΔE 0.027
- Wine Red #7B0323 ΔE 0.044
- Maroon #800000 ΔE 0.045
- Burgundy #610023 ΔE 0.048
- Chestnut #742802 ΔE 0.053
- Bordeaux #7B002C ΔE 0.054
Use #6B100F 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.