#B64740
Closest named color: Dull Red (#BB3F3F). oklch(54.6% 0.146 26.6), rgb(182, 71, 64).
Aa
White text reads best on this color (5.29:1).
About this color
#B64740 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.146 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.016 away. White text reads best on it, at 5.29:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.96:1 |
| White text | 5.29:1 |
Values
| HEX | #B64740 |
| RGB | rgb(182, 71, 64) |
| HSL | hsl(4, 48%, 48%) |
| OKLCH | oklch(54.6% 0.146 26.6) |
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 #B64740 | 5.29:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #B64740 | 3.96:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #B64740 text on white | 5.29:1 | AA | Lc 75.6 | Fine for body text |
| #B64740 text on black | 3.96:1 | AA large text | Lc -26.1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E5E3
oklch(93.5% 0.019 25.6)
-
Step 200
200
#F0D1CC
oklch(88.5% 0.036 28.7)
-
Step 300
300
#E8B1AA
oklch(80.9% 0.065 26.9)
-
Step 400
400
#DA867D
oklch(70.6% 0.105 26.6)
-
Step 500
500
#CE665D
oklch(63.2% 0.133 26.6)
-
Step 600
600 (this color)
#B64740
oklch(54.6% 0.146 26.6)
-
Step 700
700
#9F3A35
oklch(49% 0.136 26.2)
-
Step 800
800
#81312C
oklch(42.6% 0.112 26.5)
-
Step 900
900
#682C28
oklch(37.6% 0.087 25.9)
-
Step 950
950
#3D1B17
oklch(27% 0.054 28.1)
#B64740 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) | #645C3F | 0.153 |
| Deuteranopia (no green cones) | #80743D | 0.141 |
| Tritanopia (no blue cones) | #C73046 | 0.047 |
| Achromatopsia (no color) | #6B6B6B | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B64740
#B64740
oklch(54.6% 0.146 26.6)
- #007F8C
#007F8C
oklch(54.5% 0.094 207.3)
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 #B64740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.016
- Dusty Red #B9484E ΔE 0.019
- Dark Rose #B5485D ΔE 0.039
- Sinopia #BB3E03 ΔE 0.043
- Light Maroon #A24857 ΔE 0.049
- Brick Orange #C14A09 ΔE 0.049
- Light Burgundy #A8415B ΔE 0.053
- Sienna #A0522D ΔE 0.055
Use #B64740 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.