#B5423C
Closest named color: Dull Red (#BB3F3F). oklch(53.8% 0.151 26.4), rgb(181, 66, 60).
Aa
White text reads best on this color (5.51:1).
About this color
#B5423C is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.151 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.013 away. White text reads best on it, at 5.51:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.80:1 |
| White text | 5.51:1 |
Values
| HEX | #B5423C |
| RGB | rgb(181, 66, 60) |
| HSL | hsl(3, 50%, 47%) |
| OKLCH | oklch(53.8% 0.151 26.4) |
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 #B5423C | 5.51:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #B5423C | 3.80:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #B5423C text on white | 5.51:1 | AA | Lc 76.7 | Fine for body text |
| #B5423C text on black | 3.80:1 | AA large text | Lc -25.1 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
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
#E9B0AA
oklch(80.8% 0.068 25.5)
-
Step 400
400
#DC857C
oklch(70.6% 0.109 26.5)
-
Step 500
500
#D0645B
oklch(63.1% 0.139 26.6)
-
Step 600
600 (this color)
#B5423C
oklch(53.8% 0.151 26.4)
-
Step 700
700
#A13833
oklch(49.1% 0.14 26.3)
-
Step 800
800
#83302B
oklch(42.8% 0.116 26.5)
-
Step 900
900
#692B27
oklch(37.6% 0.09 26)
-
Step 950
950
#3E1A17
oklch(27% 0.057 26.4)
#B5423C 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) | #61593B | 0.159 |
| Deuteranopia (no green cones) | #7D7239 | 0.148 |
| Tritanopia (no blue cones) | #C62841 | 0.047 |
| Achromatopsia (no color) | #696969 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5423C
#B5423C
oklch(53.8% 0.151 26.4)
- #007D88
#007D88
oklch(53.8% 0.092 205.6)
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 #B5423C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.013
- Dusty Red #B9484E ΔE 0.024
- Sinopia #BB3E03 ΔE 0.041
- Dark Rose #B5485D ΔE 0.042
- Rusty Red #AF2F0D ΔE 0.047
- Light Maroon #A24857 ΔE 0.049
- Firebrick #B22222 ΔE 0.050
- Light Burgundy #A8415B ΔE 0.051
Use #B5423C 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.