#BB3D12
Closest named color: Sinopia (#BB3E03). oklch(53.7% 0.169 37), rgb(187, 61, 18).
Aa
White text reads best on this color (5.54:1).
About this color
#BB3D12 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.169 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.006 away. White text reads best on it, at 5.54:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.78:1 |
| White text | 5.54:1 |
Values
| HEX | #BB3D12 |
| RGB | rgb(187, 61, 18) |
| HSL | hsl(15, 82%, 40%) |
| OKLCH | oklch(53.7% 0.169 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 #BB3D12 | 5.54:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #BB3D12 | 3.78:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #BB3D12 text on white | 5.54:1 | AA | Lc 76.6 | Fine for body text |
| #BB3D12 text on black | 3.78:1 | AA large text | Lc -25.2 | 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 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
#EDB09E
oklch(80.9% 0.076 37.1)
-
Step 400
400
#E18469
oklch(70.7% 0.121 37)
-
Step 500
500
#D6613F
oklch(63.1% 0.156 36.9)
-
Step 600
600 (this color)
#BB3D12
oklch(53.7% 0.169 37)
-
Step 700
700
#A7340B
oklch(49.2% 0.158 37.1)
-
Step 800
800
#872C0F
oklch(42.6% 0.13 36.9)
-
Step 900
900
#6D2915
oklch(37.7% 0.102 36.9)
-
Step 950
950
#40190E
oklch(27% 0.064 36.6)
#BB3D12 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) | #635707 | 0.172 |
| Deuteranopia (no green cones) | #817307 | 0.157 |
| Tritanopia (no blue cones) | #CE1036 | 0.070 |
| Achromatopsia (no color) | #686868 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3D12
#BB3D12
oklch(53.7% 0.169 37)
- #007B92
#007B92
oklch(53.7% 0.096 216.9)
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 #BB3D12, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.006
- Brick Orange #C14A09 ΔE 0.030
- Rusty Red #AF2F0D ΔE 0.037
- Burnt Orange #C04E01 ΔE 0.037
- Dull Red #BB3F3F ΔE 0.039
- Burnt Siena #B75203 ΔE 0.042
- Cinnamon #AC4F06 ΔE 0.044
- Firebrick #B22222 ΔE 0.052
Use #BB3D12 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.