#B12006
Closest named color: Rufous (#AE2012). oklch(49.2% 0.183 31.8), rgb(177, 32, 6).
Aa
White text reads best on this color (6.82:1).
About this color
#B12006 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.183 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.008 away. White text reads best on it, at 6.82:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #B12006 |
| RGB | rgb(177, 32, 6) |
| HSL | hsl(9, 93%, 36%) |
| OKLCH | oklch(49.2% 0.183 31.8) |
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 #B12006 | 6.82:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #B12006 | 3.07:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #B12006 text on white | 6.82:1 | AA | Lc 81.8 | Fine for body text |
| #B12006 text on black | 3.07:1 | AA large text | Lc -20.1 | Dividers and decoration only |
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 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F8CEC5
oklch(88.5% 0.049 32.1)
-
Step 300
300
#F4AC9D
oklch(80.9% 0.088 32.1)
-
Step 400
400
#EB7C67
oklch(70.7% 0.141 32)
-
Step 500
500
#E1543C
oklch(63% 0.18 32)
-
Step 600
600
#CD3017
oklch(55.6% 0.197 31.8)
-
Step 700
700 (this color)
#B12006
oklch(49.2% 0.183 31.8)
-
Step 800
800
#901E0C
oklch(42.8% 0.152 31.7)
-
Step 900
900
#732114
oklch(37.6% 0.117 31.7)
-
Step 950
950
#44150D
oklch(27% 0.075 31.9)
#B12006 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) | #514600 | 0.195 |
| Deuteranopia (no green cones) | #746600 | 0.174 |
| Tritanopia (no blue cones) | #C4001D | 0.043 |
| Achromatopsia (no color) | #5B5B5B | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B12006
#B12006
oklch(49.2% 0.183 31.8)
- #006D7D
#006D7D
oklch(49.1% 0.086 212.3)
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 #B12006, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.008
- Rust Red #AA2704 ΔE 0.015
- Firebrick #B22222 ΔE 0.017
- Rusty Red #AF2F0D ΔE 0.018
- Brown #A52A2A ΔE 0.032
- Scarlet #BE0119 ΔE 0.032
- Burnt Red #9F2305 ΔE 0.037
- Brick #A03623 ΔE 0.039
Use #B12006 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.