#B7322A
Closest named color: Firebrick (#B22222). oklch(52% 0.171 28.1), rgb(183, 50, 42).
Aa
White text reads best on this color (5.99:1).
About this color
#B7322A is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.171 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Firebrick (#B22222), ΔE 0.026 away. White text reads best on it, at 5.99:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Firebrick (#B22222) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #B7322A |
| RGB | rgb(183, 50, 42) |
| HSL | hsl(3, 63%, 44%) |
| OKLCH | oklch(52% 0.171 28.1) |
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 #B7322A | 5.99:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #B7322A | 3.50:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #B7322A text on white | 5.99:1 | AA | Lc 78.7 | Fine for body text |
| #B7322A text on black | 3.50:1 | AA large text | Lc -23.1 | 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 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
#F6CEC8
oklch(88.4% 0.046 28)
-
Step 300
300
#F2ADA3
oklch(81% 0.083 28.3)
-
Step 400
400
#E77E71
oklch(70.7% 0.132 28.2)
-
Step 500
500
#DD584C
oklch(63.1% 0.169 28)
-
Step 600
600
#C8372E
oklch(55.5% 0.183 28.2)
-
Step 700
700 (this color)
#B7322A
oklch(52% 0.171 28.1)
-
Step 800
800
#8C231D
oklch(42.6% 0.142 28.1)
-
Step 900
900
#71241D
oklch(37.8% 0.11 28.6)
-
Step 950
950
#421612
oklch(26.9% 0.069 27.8)
#B7322A 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) | #595128 | 0.184 |
| Deuteranopia (no green cones) | #7A6E25 | 0.168 |
| Tritanopia (no blue cones) | #CA0032 | 0.050 |
| Achromatopsia (no color) | #636363 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7322A
#B7322A
oklch(52% 0.171 28.1)
- #007784
#007784
oklch(52.1% 0.09 208.1)
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 #B7322A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Firebrick #B22222 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.027
- Dull Red #BB3F3F ΔE 0.029
- Rufous #AE2012 ΔE 0.035
- Sinopia #BB3E03 ΔE 0.037
- Scarlet #BE0119 ΔE 0.038
- Rust Red #AA2704 ΔE 0.040
- Brown #A52A2A ΔE 0.042
Use #B7322A 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.