#BB3F06
Closest named color: Sinopia (#BB3E03). oklch(53.9% 0.169 39.2), rgb(187, 63, 6).
Aa
White text reads best on this color (5.48:1).
About this color
#BB3F06 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.169 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.002 away. White text reads best on it, at 5.48:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.82:1 |
| White text | 5.48:1 |
Values
| HEX | #BB3F06 |
| RGB | rgb(187, 63, 6) |
| HSL | hsl(19, 94%, 38%) |
| OKLCH | oklch(53.9% 0.169 39.2) |
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 #BB3F06 | 5.48:1 | AA | Lc -81.6 | Fine for body text |
| Black text on #BB3F06 | 3.82:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #BB3F06 text on white | 5.48:1 | AA | Lc 76.3 | Fine for body text |
| #BB3F06 text on black | 3.82:1 | AA large text | Lc -25.4 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F3D0C5
oklch(88.4% 0.042 38.2)
-
Step 300
300
#ECB09C
oklch(80.8% 0.076 39.2)
-
Step 400
400
#E18566
oklch(70.8% 0.122 39.3)
-
Step 500
500
#D5623A
oklch(63% 0.155 39.2)
-
Step 600
600 (this color)
#BB3F06
oklch(53.9% 0.169 39.2)
-
Step 700
700
#A63500
oklch(49.1% 0.157 39.1)
-
Step 800
800
#872D08
oklch(42.7% 0.131 39)
-
Step 900
900
#6D2A12
oklch(37.8% 0.102 39.1)
-
Step 950
950
#40190C
oklch(26.9% 0.065 38.7)
#BB3F06 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) | #645700 | 0.169 |
| Deuteranopia (no green cones) | #827300 | 0.152 |
| Tritanopia (no blue cones) | #CE1536 | 0.073 |
| Achromatopsia (no color) | #696969 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB3F06
#BB3F06
oklch(53.9% 0.169 39.2)
- #007B95
#007B95
oklch(53.9% 0.098 219.5)
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 #BB3F06, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.002
- Brick Orange #C14A09 ΔE 0.026
- Burnt Orange #C04E01 ΔE 0.032
- Burnt Siena #B75203 ΔE 0.037
- Cinnamon #AC4F06 ΔE 0.039
- Rusty Red #AF2F0D ΔE 0.041
- Dull Red #BB3F3F ΔE 0.044
- Rust Orange #C45508 ΔE 0.049
Use #BB3F06 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.