#BF510C
Closest named color: Burnt Orange (#C04E01). oklch(56.9% 0.158 45.2), rgb(191, 81, 12).
Aa
White text reads best on this color (4.77:1).
About this color
#BF510C is a medium-dark, vivid orange. In OKLCH its lightness is 57%, its chroma 0.158 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Orange (#C04E01), ΔE 0.006 away. White text reads best on it, at 4.77:1.
| Hue family | Oranges |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Burnt Orange (#C04E01) |
| Black text | 4.39:1 |
| White text | 4.77:1 |
Values
| HEX | #BF510C |
| RGB | rgb(191, 81, 12) |
| HSL | hsl(23, 88%, 40%) |
| OKLCH | oklch(56.9% 0.158 45.2) |
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 #BF510C | 4.77:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #BF510C | 4.39:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #BF510C text on white | 4.77:1 | AA | Lc 72.4 | Content text, not long reading |
| #BF510C text on black | 4.39:1 | AA large text | Lc -29.3 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F1D2C4
oklch(88.6% 0.04 45.8)
-
Step 300
300
#E8B39B
oklch(80.9% 0.07 45.5)
-
Step 400
400
#DB8963
oklch(70.7% 0.113 45.3)
-
Step 500
500
#CF6835
oklch(63% 0.145 45)
-
Step 600
600 (this color)
#BF510C
oklch(56.9% 0.158 45.2)
-
Step 700
700
#9E3F00
oklch(49.1% 0.14 44.9)
-
Step 800
800
#823301
oklch(42.6% 0.121 45)
-
Step 900
900
#692E0F
oklch(37.7% 0.094 45)
-
Step 950
950
#3E1C0B
oklch(27.1% 0.06 45.5)
#BF510C 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) | #716300 | 0.147 |
| Deuteranopia (no green cones) | #8C7C03 | 0.133 |
| Tritanopia (no blue cones) | #D23646 | 0.082 |
| Achromatopsia (no color) | #737373 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BF510C
#BF510C
oklch(56.9% 0.158 45.2)
- #0084A7
#0084A7
oklch(57% 0.108 224.9)
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 #BF510C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Orange #C04E01 ΔE 0.006
- Brick Orange #C14A09 ΔE 0.013
- Rust Orange #C45508 ΔE 0.014
- Burnt Siena #B75203 ΔE 0.016
- Rusty Orange #CD5909 ΔE 0.034
- Cinnamon #AC4F06 ΔE 0.038
- Sinopia #BB3E03 ΔE 0.038
- Copper #B66325 ΔE 0.038
Use #BF510C 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.