#B82721
Closest named color: Firebrick (#B22222). oklch(51.2% 0.182 28.2), rgb(184, 39, 33).
Aa
White text reads best on this color (6.26:1).
About this color
#B82721 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.182 and its hue 28°. 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 (0.182) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.35:1 |
| White text | 6.26:1 |
Values
| HEX | #B82721 |
| RGB | rgb(184, 39, 33) |
| HSL | hsl(2, 70%, 43%) |
| OKLCH | oklch(51.2% 0.182 28.2) |
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 #B82721 | 6.26:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #B82721 | 3.35:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #B82721 text on white | 6.26:1 | AA | Lc 79.6 | Fine for body text |
| #B82721 text on black | 3.35:1 | AA large text | Lc -22.2 | 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
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F8CEC7
oklch(88.6% 0.049 29.1)
-
Step 300
300
#F4ABA1
oklch(80.8% 0.088 27.8)
-
Step 400
400
#EB7B6E
oklch(70.7% 0.141 28)
-
Step 500
500
#E25347
oklch(63.2% 0.18 28.1)
-
Step 600
600
#CD2F27
oklch(55.6% 0.195 28.4)
-
Step 700
700 (this color)
#B82721
oklch(51.2% 0.182 28.2)
-
Step 800
800
#901D18
oklch(42.8% 0.151 28.2)
-
Step 900
900
#73201A
oklch(37.6% 0.117 28.2)
-
Step 950
950
#441510
oklch(27.1% 0.074 28.9)
#B82721 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) | #554C1E | 0.197 |
| Deuteranopia (no green cones) | #796C19 | 0.179 |
| Tritanopia (no blue cones) | #CB0028 | 0.042 |
| Achromatopsia (no color) | #606060 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B82721
#B82721
oklch(51.2% 0.182 28.2)
- #007481
#007481
oklch(51.1% 0.088 208.4)
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 #B82721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.016
- Scarlet #BE0119 ΔE 0.025
- Rusty Red #AF2F0D ΔE 0.025
- Rufous #AE2012 ΔE 0.026
- Lipstick Red #C0022F ΔE 0.034
- Rust Red #AA2704 ΔE 0.034
- Brown #A52A2A ΔE 0.039
- Dull Red #BB3F3F ΔE 0.041
Use #B82721 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.