#BB5727
Closest named color: Rust Orange (#C45508). oklch(57.4% 0.143 43.8), rgb(187, 87, 39).
Aa
White text reads best on this color (4.66:1).
About this color
#BB5727 is a medium-dark, vivid orange. In OKLCH its lightness is 57%, its chroma 0.143 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.021 away. White text reads best on it, at 4.66:1.
| Hue family | Oranges |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.50:1 |
| White text | 4.66:1 |
Values
| HEX | #BB5727 |
| RGB | rgb(187, 87, 39) |
| HSL | hsl(19, 65%, 44%) |
| OKLCH | oklch(57.4% 0.143 43.8) |
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 #BB5727 | 4.66:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #BB5727 | 4.50:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #BB5727 text on white | 4.66:1 | AA | Lc 71.8 | Content text, not long reading |
| #BB5727 text on black | 4.50:1 | AA | Lc -29.9 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EFD2C7
oklch(88.5% 0.036 41.9)
-
Step 300
300
#E5B49F
oklch(80.9% 0.064 44.3)
-
Step 400
400
#D68B6B
oklch(70.6% 0.102 43.8)
-
Step 500
500
#CA6C42
oklch(63.1% 0.132 43.8)
-
Step 600
600 (this color)
#BB5727
oklch(57.4% 0.143 43.8)
-
Step 700
700
#9C4212
oklch(49.2% 0.133 44)
-
Step 800
800
#7E3713
oklch(42.7% 0.109 44.2)
-
Step 900
900
#663018
oklch(37.7% 0.086 43.3)
-
Step 950
950
#3C1D0F
oklch(27.1% 0.054 44.2)
#BB5727 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) | #736621 | 0.133 |
| Deuteranopia (no green cones) | #8B7D24 | 0.123 |
| Tritanopia (no blue cones) | #CD414D | 0.074 |
| Achromatopsia (no color) | #747474 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB5727
#BB5727
oklch(57.4% 0.143 43.8)
- #0085A7
#0085A7
oklch(57.3% 0.108 224)
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 #BB5727, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.021
- Burnt Siena #B75203 ΔE 0.021
- Burnt Orange #C04E01 ΔE 0.021
- Brick Orange #C14A09 ΔE 0.026
- Copper #B66325 ΔE 0.028
- Orangey Brown #B16002 ΔE 0.036
- Rusty Orange #CD5909 ΔE 0.037
- Cinnamon #AC4F06 ΔE 0.039
Use #BB5727 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.