#A73121
Closest named color: Brick (#A03623). oklch(49% 0.157 30.9), rgb(167, 49, 33).
Aa
White text reads best on this color (6.76:1).
About this color
#A73121 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.157 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Brick (#A03623), ΔE 0.015 away. White text reads best on it, at 6.76:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Brick (#A03623) |
| Black text | 3.10:1 |
| White text | 6.76:1 |
Values
| HEX | #A73121 |
| RGB | rgb(167, 49, 33) |
| HSL | hsl(7, 67%, 39%) |
| OKLCH | oklch(49% 0.157 30.9) |
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 #A73121 | 6.76:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #A73121 | 3.10:1 | AA large text | Lc 21.9 | Dividers and decoration only |
| #A73121 text on white | 6.76:1 | AA | Lc 82.2 | Fine for body text |
| #A73121 text on black | 3.10:1 | AA large text | Lc -19.7 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F4D0C8
oklch(88.6% 0.042 32.6)
-
Step 300
300
#EEAFA3
oklch(81% 0.076 31)
-
Step 400
400
#E28271
oklch(70.7% 0.122 31)
-
Step 500
500
#D75F4C
oklch(63.2% 0.155 31)
-
Step 600
600
#C2412F
oklch(55.6% 0.168 30.9)
-
Step 700
700 (this color)
#A73121
oklch(49% 0.157 30.9)
-
Step 800
800
#882A1D
oklch(42.7% 0.131 30.9)
-
Step 900
900
#6D281E
oklch(37.6% 0.101 30.6)
-
Step 950
950
#401812
oklch(26.9% 0.064 30.5)
#A73121 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) | #544B1E | 0.165 |
| Deuteranopia (no green cones) | #71651C | 0.151 |
| Tritanopia (no blue cones) | #B8022E | 0.053 |
| Achromatopsia (no color) | #5B5B5B | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A73121
#A73121
oklch(49% 0.157 30.9)
- #006D7C
#006D7C
oklch(49% 0.085 211.2)
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 #A73121, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick #A03623 ΔE 0.015
- Brown #A52A2A ΔE 0.018
- Rust Red #AA2704 ΔE 0.018
- Rusty Red #AF2F0D ΔE 0.019
- Rufous #AE2012 ΔE 0.023
- Firebrick #B22222 ΔE 0.027
- Russet #A13905 ΔE 0.028
- Burnt Red #9F2305 ΔE 0.032
Use #A73121 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.