#6B0B00
Closest named color: Reddy Brown (#6E1005). oklch(33.8% 0.13 31.5), rgb(107, 11, 0).
Aa
White text reads best on this color (12.55:1).
About this color
#6B0B00 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.130 and its hue 32°. 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 12.55:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.67:1 |
| White text | 12.55:1 |
Values
| HEX | #6B0B00 |
| RGB | rgb(107, 11, 0) |
| HSL | hsl(6, 100%, 21%) |
| OKLCH | oklch(33.8% 0.13 31.5) |
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 #6B0B00 | 12.55:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #6B0B00 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #6B0B00 text on white | 12.55:1 | AAA | Lc 96.8 | Preferred for body text |
| #6B0B00 text on black | 1.67:1 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE4DE
oklch(93.7% 0.028 34.3)
-
Step 200
200
#FBCDC3
oklch(88.5% 0.054 32.4)
-
Step 300
300
#F9A99A
oklch(80.9% 0.098 31)
-
Step 400
400
#F27761
oklch(70.8% 0.156 31.7)
-
Step 500
500
#E94A32
oklch(63.1% 0.199 31.5)
-
Step 600
600
#D32100
oklch(55.6% 0.213 31.6)
-
Step 700
700
#B31A00
oklch(49.1% 0.188 31.6)
-
Step 800
800
#941300
oklch(42.7% 0.164 31.5)
-
Step 900
900 (this color)
#6B0B00
oklch(33.8% 0.13 31.5)
-
Step 950
950
#46120A
oklch(26.9% 0.081 31.5)
#6B0B00 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) | #2D2600 | 0.139 |
| Deuteranopia (no green cones) | #433B00 | 0.125 |
| Tritanopia (no blue cones) | #77000A | 0.029 |
| Achromatopsia (no color) | #333333 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B0B00
#6B0B00
oklch(33.8% 0.13 31.5)
- #003F49
#003F49
oklch(33.8% 0.059 212.2)
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 #6B0B00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.010
- Blood #770001 ΔE 0.026
- Claret #680018 ΔE 0.031
- Maroon #800000 ΔE 0.046
- Wine Red #7B0323 ΔE 0.052
- Burgundy #610023 ΔE 0.054
- Chestnut #742802 ΔE 0.054
- Bordeaux #7B002C ΔE 0.063
Use #6B0B00 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.