#A9372D
Closest named color: Brick (#A03623). oklch(50.2% 0.151 28.6), rgb(169, 55, 45).
Aa
White text reads best on this color (6.41:1).
About this color
#A9372D is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.151 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.021 away. White text reads best on it, at 6.41:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #A9372D |
| RGB | rgb(169, 55, 45) |
| HSL | hsl(5, 58%, 42%) |
| OKLCH | oklch(50.2% 0.151 28.6) |
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 #A9372D | 6.41:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #A9372D | 3.27:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #A9372D text on white | 6.41:1 | AA | Lc 80.9 | Fine for body text |
| #A9372D text on black | 3.27:1 | AA large text | Lc -21.0 | 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
#FCF3F2
oklch(97.1% 0.01 25.1)
-
Step 100
100
#F8E5E2
oklch(93.6% 0.021 28.3)
-
Step 200
200
#F3D0CA
oklch(88.6% 0.04 29.4)
-
Step 300
300
#ECAFA6
oklch(80.8% 0.073 28.3)
-
Step 400
400
#E08376
oklch(70.7% 0.117 28.8)
-
Step 500
500
#D56053
oklch(63.1% 0.15 28.5)
-
Step 600
600
#C04337
oklch(55.6% 0.163 28.8)
-
Step 700
700 (this color)
#A9372D
oklch(50.2% 0.151 28.6)
-
Step 800
800
#862C24
oklch(42.7% 0.125 28.5)
-
Step 900
900
#6C2922
oklch(37.7% 0.097 28.5)
-
Step 950
950
#401914
oklch(27.1% 0.062 29.2)
#A9372D 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) | #574F2B | 0.160 |
| Deuteranopia (no green cones) | #736829 | 0.147 |
| Tritanopia (no blue cones) | #BA1736 | 0.050 |
| Achromatopsia (no color) | #5F5F5F | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A9372D
#A9372D
oklch(50.2% 0.151 28.6)
- #00717E
#00717E
oklch(50.2% 0.086 208.7)
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 #A9372D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.021
- Brown #A52A2A ΔE 0.024
- Rusty Red #AF2F0D ΔE 0.025
- Firebrick #B22222 ΔE 0.029
- Rust Red #AA2704 ΔE 0.031
- Rufous #AE2012 ΔE 0.032
- Russet #A13905 ΔE 0.035
- Dull Red #BB3F3F ΔE 0.045
Use #A9372D 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.