#BF5734
Closest named color: Rust Orange (#C45508). oklch(58.1% 0.143 38.8), rgb(191, 87, 52).
Aa
Black text reads best on this color (4.62:1).
About this color
#BF5734 is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.143 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.026 away. Black text reads best on it, at 4.62:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.62:1 |
| White text | 4.53:1 |
Values
| HEX | #BF5734 |
| RGB | rgb(191, 87, 52) |
| HSL | hsl(15, 57%, 48%) |
| OKLCH | oklch(58.1% 0.143 38.8) |
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 #BF5734 | 4.53:1 | AA | Lc -76.4 | Fine for body text |
| Black text on #BF5734 | 4.62:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #BF5734 text on white | 4.53:1 | AA | Lc 70.9 | Content text, not long reading |
| #BF5734 text on black | 4.62:1 | AA | Lc -30.8 | Non-text elements, placeholder text |
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
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#EFD2C8
oklch(88.5% 0.035 40)
-
Step 300
300
#E6B3A2
oklch(80.9% 0.064 39.2)
-
Step 400
400
#D88A70
oklch(70.8% 0.103 39.2)
-
Step 500
500
#CB6A4A
oklch(63.1% 0.132 38.8)
-
Step 600
600 (this color)
#BF5734
oklch(58.1% 0.143 38.8)
-
Step 700
700
#9D3F1F
oklch(49.1% 0.133 38.5)
-
Step 800
800
#7F351C
oklch(42.6% 0.109 38.7)
-
Step 900
900
#672F1D
oklch(37.7% 0.086 38.4)
-
Step 950
950
#3C1C11
oklch(26.9% 0.054 39.5)
#BF5734 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) | #736830 | 0.140 |
| Deuteranopia (no green cones) | #8D7F31 | 0.128 |
| Tritanopia (no blue cones) | #D1414F | 0.066 |
| Achromatopsia (no color) | #767676 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BF5734
#BF5734
oklch(58.1% 0.143 38.8)
- #0089A4
#0089A4
oklch(58.2% 0.105 218.2)
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 #BF5734, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.026
- Burnt Orange #C04E01 ΔE 0.029
- Brick Orange #C14A09 ΔE 0.030
- Burnt Siena #B75203 ΔE 0.034
- Terra Cotta #C9643B ΔE 0.036
- Copper #B66325 ΔE 0.037
- Rusty Orange #CD5909 ΔE 0.037
- Terracotta #CA6641 ΔE 0.041
Use #BF5734 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.