#A73740
Closest named color: Brown (#A52A2A). oklch(50.2% 0.147 19.6), rgb(167, 55, 64).
Aa
White text reads best on this color (6.43:1).
About this color
#A73740 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.147 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.029 away. White text reads best on it, at 6.43:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.26:1 |
| White text | 6.43:1 |
Values
| HEX | #A73740 |
| RGB | rgb(167, 55, 64) |
| HSL | hsl(355, 50%, 44%) |
| OKLCH | oklch(50.2% 0.147 19.6) |
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 #A73740 | 6.43:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #A73740 | 3.26:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #A73740 text on white | 6.43:1 | AA | Lc 81.0 | Fine for body text |
| #A73740 text on black | 3.26:1 | AA large text | Lc -20.8 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F7E5E4
oklch(93.6% 0.02 21.4)
-
Step 200
200
#F2CFCF
oklch(88.4% 0.039 17.9)
-
Step 300
300
#EBAFAE
oklch(80.9% 0.071 19.8)
-
Step 400
400
#DE8283
oklch(70.6% 0.114 19.6)
-
Step 500
500
#D36065
oklch(63.2% 0.145 19.5)
-
Step 600
600
#BE434C
oklch(55.6% 0.158 19.7)
-
Step 700
700 (this color)
#A73740
oklch(50.2% 0.147 19.6)
-
Step 800
800
#852C33
oklch(42.8% 0.122 19.4)
-
Step 900
900
#6B292C
oklch(37.7% 0.095 20.1)
-
Step 950
950
#3F191A
oklch(27.1% 0.06 20.3)
#A73740 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) | #545040 | 0.160 |
| Deuteranopia (no green cones) | #70673D | 0.147 |
| Tritanopia (no blue cones) | #B71E3B | 0.039 |
| Achromatopsia (no color) | #5F5F5F | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A73740
#A73740
oklch(50.2% 0.147 19.6)
- #007277
#007277
oklch(50.2% 0.085 200.1)
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 #A73740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.029
- Brick #A03623 ΔE 0.037
- Light Burgundy #A8415B ΔE 0.037
- Light Maroon #A24857 ΔE 0.038
- Firebrick #B22222 ΔE 0.039
- Rouge #AB1239 ΔE 0.044
- Dull Red #BB3F3F ΔE 0.046
- Rufous #AE2012 ΔE 0.047
Use #A73740 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.