#B42D2B
Closest named color: Firebrick (#B22222). oklch(51.1% 0.172 26.4), rgb(180, 45, 43).
Aa
White text reads best on this color (6.26:1).
About this color
#B42D2B is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.172 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.016 away. White text reads best on it, at 6.26:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.35:1 |
| White text | 6.26:1 |
Values
| HEX | #B42D2B |
| RGB | rgb(180, 45, 43) |
| HSL | hsl(1, 61%, 44%) |
| OKLCH | oklch(51.1% 0.172 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 #B42D2B | 6.26:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #B42D2B | 3.35:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #B42D2B text on white | 6.26:1 | AA | Lc 79.9 | Fine for body text |
| #B42D2B text on black | 3.35:1 | AA large text | Lc -22.0 | 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 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E1
oklch(93.6% 0.025 26.9)
-
Step 200
200
#F7CEC9
oklch(88.5% 0.047 26.2)
-
Step 300
300
#F2ACA4
oklch(80.9% 0.084 26.4)
-
Step 400
400
#E87D73
oklch(70.7% 0.134 26.5)
-
Step 500
500
#DE574F
oklch(63.2% 0.171 26.5)
-
Step 600
600
#C93533
oklch(55.6% 0.185 26.2)
-
Step 700
700 (this color)
#B42D2B
oklch(51.1% 0.172 26.4)
-
Step 800
800
#8D2220
oklch(42.8% 0.143 26.5)
-
Step 900
900
#71231F
oklch(37.7% 0.111 26.7)
-
Step 950
950
#431613
oklch(27.1% 0.071 26.6)
#B42D2B 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) | #564E29 | 0.185 |
| Deuteranopia (no green cones) | #776B26 | 0.170 |
| Tritanopia (no blue cones) | #C6002E | 0.043 |
| Achromatopsia (no color) | #606060 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B42D2B
#B42D2B
oklch(51.1% 0.172 26.4)
- #00747F
#00747F
oklch(51.1% 0.087 206.3)
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 #B42D2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.016
- Rusty Red #AF2F0D ΔE 0.026
- Rufous #AE2012 ΔE 0.027
- Brown #A52A2A ΔE 0.033
- Scarlet #BE0119 ΔE 0.033
- Rust Red #AA2704 ΔE 0.035
- Dull Red #BB3F3F ΔE 0.037
- Lipstick Red #C0022F ΔE 0.038
Use #B42D2B 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.