#BC3747
Closest named color: Dull Red (#BB3F3F). oklch(53.9% 0.169 18.3), rgb(188, 55, 71).
Aa
White text reads best on this color (5.56:1).
About this color
#BC3747 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.169 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.020 away. White text reads best on it, at 5.56:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #BC3747 |
| RGB | rgb(188, 55, 71) |
| HSL | hsl(353, 55%, 48%) |
| OKLCH | oklch(53.9% 0.169 18.3) |
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 #BC3747 | 5.56:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #BC3747 | 3.77:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #BC3747 text on white | 5.56:1 | AA | Lc 76.7 | Fine for body text |
| #BC3747 text on black | 3.77:1 | AA large text | Lc -25.1 | 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 600.
-
Step 50
50
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCE
oklch(88.6% 0.042 19.8)
-
Step 300
300
#EEADAE
oklch(80.9% 0.077 17.9)
-
Step 400
400
#E28083
oklch(70.7% 0.121 18.7)
-
Step 500
500
#D75C65
oklch(63.2% 0.155 18.2)
-
Step 600
600 (this color)
#BC3747
oklch(53.9% 0.169 18.3)
-
Step 700
700
#A72E3D
oklch(49.1% 0.156 18.3)
-
Step 800
800
#882832
oklch(42.8% 0.13 18.7)
-
Step 900
900
#6D262C
oklch(37.6% 0.101 18.4)
-
Step 950
950
#40171A
oklch(26.9% 0.064 18)
#BC3747 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) | #5B5647 | 0.184 |
| Deuteranopia (no green cones) | #7C7243 | 0.170 |
| Tritanopia (no blue cones) | #CE113E | 0.043 |
| Achromatopsia (no color) | #686868 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BC3747
#BC3747
oklch(53.9% 0.169 18.3)
- #007E82
#007E82
oklch(53.9% 0.092 198.7)
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 #BC3747, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.020
- Dusty Red #B9484E ΔE 0.028
- Dark Rose #B5485D ΔE 0.035
- Light Burgundy #A8415B ΔE 0.046
- Lipstick Red #C0022F ΔE 0.046
- Rose Red #BE013C ΔE 0.046
- Ruby #CA0147 ΔE 0.047
- Cherry #CF0234 ΔE 0.049
Use #BC3747 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.