#B6360C
Closest named color: Sinopia (#BB3E03). oklch(52.1% 0.171 36.1), rgb(182, 54, 12).
Aa
White text reads best on this color (5.96:1).
About this color
#B6360C is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.171 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.020 away. White text reads best on it, at 5.96:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.52:1 |
| White text | 5.96:1 |
Values
| HEX | #B6360C |
| RGB | rgb(182, 54, 12) |
| HSL | hsl(15, 88%, 38%) |
| OKLCH | oklch(52.1% 0.171 36.1) |
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 #B6360C | 5.96:1 | AA | Lc -83.8 | Fine for body text |
| Black text on #B6360C | 3.52:1 | AA large text | Lc 25.5 | Dividers and decoration only |
| #B6360C text on white | 5.96:1 | AA | Lc 78.6 | Fine for body text |
| #B6360C text on black | 3.52:1 | AA large text | Lc -23.2 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F6CFC4
oklch(88.5% 0.047 36.3)
-
Step 300
300
#F1AE9C
oklch(80.9% 0.083 35.6)
-
Step 400
400
#E68065
oklch(70.6% 0.132 35.8)
-
Step 500
500
#DC5B38
oklch(63.1% 0.17 36)
-
Step 600
600
#C73B0C
oklch(55.5% 0.184 36.1)
-
Step 700
700 (this color)
#B6360C
oklch(52.1% 0.171 36.1)
-
Step 800
800
#8B2605
oklch(42.6% 0.141 36)
-
Step 900
900
#702611
oklch(37.7% 0.11 36.2)
-
Step 950
950
#42170C
oklch(27% 0.07 35.4)
#B6360C 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) | #5D5101 | 0.176 |
| Deuteranopia (no green cones) | #7C6E00 | 0.159 |
| Tritanopia (no blue cones) | #C9002F | 0.065 |
| Achromatopsia (no color) | #636363 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B6360C
#B6360C
oklch(52.1% 0.171 36.1)
- #00768B
#00768B
oklch(52.1% 0.092 215.8)
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 #B6360C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.020
- Rusty Red #AF2F0D ΔE 0.020
- Rust Red #AA2704 ΔE 0.037
- Firebrick #B22222 ΔE 0.038
- Rufous #AE2012 ΔE 0.039
- Russet #A13905 ΔE 0.042
- Dull Red #BB3F3F ΔE 0.043
- Brick Orange #C14A09 ΔE 0.046
Use #B6360C 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.