#B64D24
Closest named color: Burnt Siena (#B75203). oklch(55.1% 0.147 40.3), rgb(182, 77, 36).
Aa
White text reads best on this color (5.15:1).
About this color
#B64D24 is a medium-dark, vivid orange. In OKLCH its lightness is 55%, its chroma 0.147 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.022 away. White text reads best on it, at 5.15:1.
| Hue family | Oranges |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.07:1 |
| White text | 5.15:1 |
Values
| HEX | #B64D24 |
| RGB | rgb(182, 77, 36) |
| HSL | hsl(17, 67%, 43%) |
| OKLCH | oklch(55.1% 0.147 40.3) |
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 #B64D24 | 5.15:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #B64D24 | 4.07:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #B64D24 text on white | 5.15:1 | AA | Lc 74.8 | Content text, not long reading |
| #B64D24 text on black | 4.07:1 | AA large text | Lc -26.9 | 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
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F0D2C7
oklch(88.6% 0.037 41.2)
-
Step 300
300
#E7B3A1
oklch(80.9% 0.066 39.9)
-
Step 400
400
#D9896D
oklch(70.7% 0.106 40)
-
Step 500
500
#CC6A46
oklch(63.1% 0.134 40.5)
-
Step 600
600 (this color)
#B64D24
oklch(55.1% 0.147 40.3)
-
Step 700
700
#9E3F18
oklch(49.2% 0.136 40.5)
-
Step 800
800
#803417
oklch(42.6% 0.113 40)
-
Step 900
900
#672F1A
oklch(37.7% 0.087 40.5)
-
Step 950
950
#3D1C10
oklch(27.1% 0.056 40.4)
#B64D24 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) | #6B5F1E | 0.142 |
| Deuteranopia (no green cones) | #847620 | 0.130 |
| Tritanopia (no blue cones) | #C83545 | 0.069 |
| Achromatopsia (no color) | #6D6D6D | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B64D24
#B64D24
oklch(55.1% 0.147 40.3)
- #007F9A
#007F9A
oklch(55.2% 0.1 219.7)
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 #B64D24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.022
- Brick Orange #C14A09 ΔE 0.023
- Burnt Orange #C04E01 ΔE 0.025
- Sinopia #BB3E03 ΔE 0.027
- Cinnamon #AC4F06 ΔE 0.027
- Rust Orange #C45508 ΔE 0.038
- Sienna #A0522D ΔE 0.041
- Dull Red #BB3F3F ΔE 0.046
Use #B64D24 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.