#B54C15
Closest named color: Burnt Siena (#B75203). oklch(54.7% 0.15 43.5), rgb(181, 76, 21).
Aa
White text reads best on this color (5.23:1).
About this color
#B54C15 is a medium-dark, vivid orange. In OKLCH its lightness is 55%, its chroma 0.150 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.017 away. White text reads best on it, at 5.23:1.
| Hue family | Oranges |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.00:1 |
| White text | 5.23:1 |
Values
| HEX | #B54C15 |
| RGB | rgb(181, 76, 21) |
| HSL | hsl(21, 79%, 40%) |
| OKLCH | oklch(54.7% 0.15 43.5) |
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 #B54C15 | 5.23:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #B54C15 | 4.00:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #B54C15 text on white | 5.23:1 | AA | Lc 75.2 | Fine for body text |
| #B54C15 text on black | 4.00:1 | AA large text | Lc -26.5 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F0D2C6
oklch(88.6% 0.038 43.1)
-
Step 300
300
#E7B39E
oklch(80.9% 0.068 43)
-
Step 400
400
#D98A68
oklch(70.7% 0.108 43.9)
-
Step 500
500
#CD6A3E
oklch(63.2% 0.138 43.5)
-
Step 600
600 (this color)
#B54C15
oklch(54.7% 0.15 43.5)
-
Step 700
700
#9E3F09
oklch(49.1% 0.139 43.6)
-
Step 800
800
#81350E
oklch(42.8% 0.116 43.5)
-
Step 900
900
#682F15
oklch(37.8% 0.09 43.3)
-
Step 950
950
#3D1C0D
oklch(27% 0.057 44)
#B54C15 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) | #6A5D09 | 0.143 |
| Deuteranopia (no green cones) | #84750F | 0.129 |
| Tritanopia (no blue cones) | #C73242 | 0.076 |
| Achromatopsia (no color) | #6C6C6C | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B54C15
#B54C15
oklch(54.7% 0.15 43.5)
- #007D9C
#007D9C
oklch(54.7% 0.102 223.1)
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 #B54C15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.017
- Cinnamon #AC4F06 ΔE 0.020
- Brick Orange #C14A09 ΔE 0.023
- Burnt Orange #C04E01 ΔE 0.023
- Sinopia #BB3E03 ΔE 0.025
- Rust Orange #C45508 ΔE 0.038
- Sienna #A0522D ΔE 0.041
- Burnt Umber #A0450E ΔE 0.047
Use #B54C15 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.