#B64B2D
Closest named color: Sinopia (#BB3E03). oklch(54.9% 0.146 36.4), rgb(182, 75, 45).
Aa
White text reads best on this color (5.20:1).
About this color
#B64B2D is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.146 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.028 away. White text reads best on it, at 5.20:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #B64B2D |
| RGB | rgb(182, 75, 45) |
| HSL | hsl(13, 60%, 45%) |
| OKLCH | oklch(54.9% 0.146 36.4) |
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 #B64B2D | 5.20:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #B64B2D | 4.03:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #B64B2D text on white | 5.20:1 | AA | Lc 75.1 | Fine for body text |
| #B64B2D text on black | 4.03:1 | AA large text | Lc -26.6 | 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
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#F0D1C9
oklch(88.4% 0.037 34.8)
-
Step 300
300
#E7B2A3
oklch(80.8% 0.066 36.4)
-
Step 400
400
#D98872
oklch(70.6% 0.105 36)
-
Step 500
500
#CD684C
oklch(63% 0.135 36.4)
-
Step 600
600 (this color)
#B64B2D
oklch(54.9% 0.146 36.4)
-
Step 700
700
#9E3D22
oklch(49% 0.136 36.2)
-
Step 800
800
#81331E
oklch(42.7% 0.113 36)
-
Step 900
900
#682E1E
oklch(37.8% 0.088 36.4)
-
Step 950
950
#3D1B12
oklch(26.9% 0.056 35.8)
#B64B2D 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) | #695E29 | 0.145 |
| Deuteranopia (no green cones) | #83762A | 0.135 |
| Tritanopia (no blue cones) | #C83345 | 0.062 |
| Achromatopsia (no color) | #6D6D6D | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B64B2D
#B64B2D
oklch(54.9% 0.146 36.4)
- #007F96
#007F96
oklch(55% 0.098 216.3)
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 #B64B2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.028
- Brick Orange #C14A09 ΔE 0.029
- Burnt Siena #B75203 ΔE 0.032
- Burnt Orange #C04E01 ΔE 0.033
- Cinnamon #AC4F06 ΔE 0.035
- Dull Red #BB3F3F ΔE 0.036
- Dusty Red #B9484E ΔE 0.042
- Sienna #A0522D ΔE 0.043
Use #B64B2D 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.