#BC431D
Closest named color: Sinopia (#BB3E03). oklch(54.7% 0.164 37), rgb(188, 67, 29).
Aa
White text reads best on this color (5.30:1).
About this color
#BC431D is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.164 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.013 away. White text reads best on it, at 5.30:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.164) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.95:1 |
| White text | 5.30:1 |
Values
| HEX | #BC431D |
| RGB | rgb(188, 67, 29) |
| HSL | hsl(14, 73%, 43%) |
| OKLCH | oklch(54.7% 0.164 37) |
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 #BC431D | 5.30:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #BC431D | 3.95:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #BC431D text on white | 5.30:1 | AA | Lc 75.4 | Fine for body text |
| #BC431D text on black | 3.95:1 | AA large text | Lc -26.3 | 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 600.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F3D0C6
oklch(88.4% 0.042 36.5)
-
Step 300
300
#ECB19F
oklch(81% 0.074 37.6)
-
Step 400
400
#DF856B
oklch(70.7% 0.117 36.9)
-
Step 500
500
#D46342
oklch(63.1% 0.151 37)
-
Step 600
600 (this color)
#BC431D
oklch(54.7% 0.164 37)
-
Step 700
700
#A53612
oklch(49.1% 0.153 36.8)
-
Step 800
800
#862E13
oklch(42.7% 0.127 36.8)
-
Step 900
900
#6C2B17
oklch(37.8% 0.098 37.5)
-
Step 950
950
#3F1A0F
oklch(27% 0.061 37.3)
#BC431D 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) | #665A16 | 0.166 |
| Deuteranopia (no green cones) | #847517 | 0.149 |
| Tritanopia (no blue cones) | #CF203C | 0.068 |
| Achromatopsia (no color) | #6B6B6B | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BC431D
#BC431D
oklch(54.7% 0.164 37)
- #007E96
#007E96
oklch(54.7% 0.098 217.3)
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 #BC431D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.013
- Brick Orange #C14A09 ΔE 0.022
- Burnt Orange #C04E01 ΔE 0.030
- Burnt Siena #B75203 ΔE 0.036
- Dull Red #BB3F3F ΔE 0.036
- Cinnamon #AC4F06 ΔE 0.041
- Rust Orange #C45508 ΔE 0.045
- Rusty Red #AF2F0D ΔE 0.047
Use #BC431D 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.