#B42125
Closest named color: Firebrick (#B22222). oklch(50% 0.182 25.8), rgb(180, 33, 37).
Aa
White text reads best on this color (6.59:1).
About this color
#B42125 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.182 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.005 away. White text reads best on it, at 6.59:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #B42125 |
| RGB | rgb(180, 33, 37) |
| HSL | hsl(358, 69%, 42%) |
| OKLCH | oklch(50% 0.182 25.8) |
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 #B42125 | 6.59:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #B42125 | 3.18:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #B42125 text on white | 6.59:1 | AA | Lc 80.9 | Fine for body text |
| #B42125 text on black | 3.18:1 | AA large text | Lc -20.9 | 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
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CDC9
oklch(88.4% 0.049 24.3)
-
Step 300
300
#F4ABA3
oklch(80.9% 0.087 26.1)
-
Step 400
400
#EB7A72
oklch(70.6% 0.141 25.4)
-
Step 500
500
#E2524D
oklch(63.2% 0.18 25.7)
-
Step 600
600
#CD2D2F
oklch(55.6% 0.196 25.9)
-
Step 700
700 (this color)
#B42125
oklch(50% 0.182 25.8)
-
Step 800
800
#901C1E
oklch(42.8% 0.151 25.7)
-
Step 900
900
#73201E
oklch(37.7% 0.117 25.9)
-
Step 950
950
#441412
oklch(27% 0.075 25.8)
#B42125 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) | #514923 | 0.198 |
| Deuteranopia (no green cones) | #75681E | 0.179 |
| Tritanopia (no blue cones) | #C70025 | 0.038 |
| Achromatopsia (no color) | #5D5D5D | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B42125
#B42125
oklch(50% 0.182 25.8)
- #00717B
#00717B
oklch(50.1% 0.086 205.5)
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 #B42125, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.005
- Rufous #AE2012 ΔE 0.020
- Scarlet #BE0119 ΔE 0.023
- Rusty Red #AF2F0D ΔE 0.029
- Brown #A52A2A ΔE 0.030
- Lipstick Red #C0022F ΔE 0.031
- Rust Red #AA2704 ΔE 0.031
- Rouge #AB1239 ΔE 0.039
Use #B42125 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.