#BC3621
Closest named color: Sinopia (#BB3E03). oklch(53.2% 0.174 31.7), rgb(188, 54, 33).
Aa
White text reads best on this color (5.69:1).
About this color
#BC3621 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.174 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.023 away. White text reads best on it, at 5.69:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #BC3621 |
| RGB | rgb(188, 54, 33) |
| HSL | hsl(8, 70%, 43%) |
| OKLCH | oklch(53.2% 0.174 31.7) |
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 #BC3621 | 5.69:1 | AA | Lc -82.6 | Fine for body text |
| Black text on #BC3621 | 3.68:1 | AA large text | Lc 26.8 | Dividers and decoration only |
| #BC3621 text on white | 5.69:1 | AA | Lc 77.2 | Fine for body text |
| #BC3621 text on black | 3.68:1 | AA large text | Lc -24.5 | 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
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC8
oklch(88.5% 0.044 30.2)
-
Step 300
300
#EFAEA1
oklch(80.8% 0.079 31.6)
-
Step 400
400
#E4816F
oklch(70.7% 0.126 31.3)
-
Step 500
500
#D95D48
oklch(63.1% 0.16 31.6)
-
Step 600
600 (this color)
#BC3621
oklch(53.2% 0.174 31.7)
-
Step 700
700
#A92F1C
oklch(49.1% 0.162 31.7)
-
Step 800
800
#892919
oklch(42.7% 0.133 32)
-
Step 900
900
#6E271B
oklch(37.6% 0.104 31.8)
-
Step 950
950
#411811
oklch(27% 0.066 31.5)
#BC3621 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) | #5E541D | 0.183 |
| Deuteranopia (no green cones) | #7F711A | 0.166 |
| Tritanopia (no blue cones) | #CF0033 | 0.058 |
| Achromatopsia (no color) | #676767 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BC3621
#BC3621
oklch(53.2% 0.174 31.7)
- #007A8B
#007A8B
oklch(53.2% 0.092 211.6)
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 #BC3621, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.023
- Dull Red #BB3F3F ΔE 0.029
- Rusty Red #AF2F0D ΔE 0.033
- Firebrick #B22222 ΔE 0.039
- Brick Orange #C14A09 ΔE 0.044
- Scarlet #BE0119 ΔE 0.045
- Rufous #AE2012 ΔE 0.046
- Dusty Red #B9484E ΔE 0.048
Use #BC3621 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.