#B5443B
Closest named color: Dull Red (#BB3F3F). oklch(54% 0.149 27.6), rgb(181, 68, 59).
Aa
White text reads best on this color (5.44:1).
About this color
#B5443B is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.149 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.015 away. White text reads best on it, at 5.44:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #B5443B |
| RGB | rgb(181, 68, 59) |
| HSL | hsl(4, 51%, 47%) |
| OKLCH | oklch(54% 0.149 27.6) |
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 #B5443B | 5.44:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #B5443B | 3.85:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #B5443B text on white | 5.44:1 | AA | Lc 76.4 | Fine for body text |
| #B5443B text on black | 3.85:1 | AA large text | Lc -25.4 | 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
#F7E5E3
oklch(93.6% 0.02 25.2)
-
Step 200
200
#F1D0CC
oklch(88.4% 0.038 26.1)
-
Step 300
300
#E9B1A9
oklch(81% 0.067 27.9)
-
Step 400
400
#DB867B
oklch(70.7% 0.107 28)
-
Step 500
500
#CF655A
oklch(63.1% 0.136 27.6)
-
Step 600
600 (this color)
#B5443B
oklch(54% 0.149 27.6)
-
Step 700
700
#A03932
oklch(49% 0.138 27.2)
-
Step 800
800
#82302A
oklch(42.6% 0.115 27.2)
-
Step 900
900
#692C26
oklch(37.7% 0.089 27.7)
-
Step 950
950
#3E1A17
oklch(27% 0.057 26.4)
#B5443B 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) | #625A39 | 0.157 |
| Deuteranopia (no green cones) | #7E7338 | 0.145 |
| Tritanopia (no blue cones) | #C62B43 | 0.049 |
| Achromatopsia (no color) | #6A6A6A | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5443B
#B5443B
oklch(54% 0.149 27.6)
- #007D8A
#007D8A
oklch(53.9% 0.093 207.5)
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 #B5443B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.015
- Dusty Red #B9484E ΔE 0.025
- Sinopia #BB3E03 ΔE 0.039
- Dark Rose #B5485D ΔE 0.044
- Rusty Red #AF2F0D ΔE 0.048
- Brick Orange #C14A09 ΔE 0.049
- Light Maroon #A24857 ΔE 0.050
- Sienna #A0522D ΔE 0.053
Use #B5443B 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.