#B05640
Closest named color: Sienna (#A0522D). oklch(55.9% 0.123 34.9), rgb(176, 86, 64).
Aa
White text reads best on this color (4.93:1).
About this color
#B05640 is a medium-dark, moderately saturated red. In OKLCH its lightness is 56%, its chroma 0.123 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.039 away. White text reads best on it, at 4.93:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.25:1 |
| White text | 4.93:1 |
Values
| HEX | #B05640 |
| RGB | rgb(176, 86, 64) |
| HSL | hsl(12, 47%, 47%) |
| OKLCH | oklch(55.9% 0.123 34.9) |
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 #B05640 | 4.93:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #B05640 | 4.25:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #B05640 text on white | 4.93:1 | AA | Lc 73.7 | Content text, not long reading |
| #B05640 text on black | 4.25:1 | AA large text | Lc -28.0 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E6E3
oklch(93.5% 0.016 32)
-
Step 200
200
#EDD2CC
oklch(88.5% 0.031 32.6)
-
Step 300
300
#E2B5A9
oklch(81% 0.055 35.4)
-
Step 400
400
#D18D7B
oklch(70.7% 0.088 35.5)
-
Step 500
500
#C46F5A
oklch(63.2% 0.113 34.8)
-
Step 600
600 (this color)
#B05640
oklch(55.9% 0.123 34.9)
-
Step 700
700
#964531
oklch(49.1% 0.114 35)
-
Step 800
800
#7A3929
oklch(42.7% 0.095 35)
-
Step 900
900
#633226
oklch(37.8% 0.074 34.8)
-
Step 950
950
#3A1E16
oklch(27.1% 0.046 36.8)
#B05640 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) | #6D643E | 0.122 |
| Deuteranopia (no green cones) | #83783E | 0.114 |
| Tritanopia (no blue cones) | #C04551 | 0.054 |
| Achromatopsia (no color) | #707070 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B05640
#B05640
oklch(55.9% 0.123 34.9)
- #008298
#008298
oklch(55.8% 0.099 215.1)
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 #B05640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.039
- Burnt Siena #B75203 ΔE 0.042
- Dusty Red #B9484E ΔE 0.042
- Earth #A2653E ΔE 0.043
- Cinnamon #AC4F06 ΔE 0.044
- Brick Orange #C14A09 ΔE 0.047
- Burnt Orange #C04E01 ΔE 0.047
- Dull Red #BB3F3F ΔE 0.048
Use #B05640 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.