#A43A3F
Closest named color: Brown (#A52A2A). oklch(50% 0.14 21), rgb(164, 58, 63).
Aa
White text reads best on this color (6.45:1).
About this color
#A43A3F is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.140 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.030 away. White text reads best on it, at 6.45:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.140) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #A43A3F |
| RGB | rgb(164, 58, 63) |
| HSL | hsl(357, 48%, 44%) |
| OKLCH | oklch(50% 0.14 21) |
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 #A43A3F | 6.45:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #A43A3F | 3.25:1 | AA large text | Lc 22.9 | Dividers and decoration only |
| #A43A3F text on white | 6.45:1 | AA | Lc 81.2 | Fine for body text |
| #A43A3F text on black | 3.25:1 | AA large text | Lc -20.7 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F7E5E4
oklch(93.6% 0.02 21.4)
-
Step 200
200
#F1D0CE
oklch(88.5% 0.037 22)
-
Step 300
300
#E9B0AE
oklch(80.9% 0.067 21)
-
Step 400
400
#DC8483
oklch(70.6% 0.109 20.9)
-
Step 500
500
#D06364
oklch(63.2% 0.138 21.3)
-
Step 600
600
#BB474B
oklch(55.6% 0.15 21.4)
-
Step 700
700 (this color)
#A43A3F
oklch(50% 0.14 21)
-
Step 800
800
#832F32
oklch(42.8% 0.116 21.3)
-
Step 900
900
#692B2C
oklch(37.7% 0.089 21.4)
-
Step 950
950
#3E1A1A
oklch(27.1% 0.057 21.5)
#A43A3F 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) | #55503E | 0.151 |
| Deuteranopia (no green cones) | #70673C | 0.140 |
| Tritanopia (no blue cones) | #B4243D | 0.040 |
| Achromatopsia (no color) | #5E5E5E | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A43A3F
#A43A3F
oklch(50% 0.14 21)
- #007177
#007177
oklch(49.9% 0.085 201.3)
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 #A43A3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.030
- Brick #A03623 ΔE 0.033
- Light Maroon #A24857 ΔE 0.036
- Light Burgundy #A8415B ΔE 0.039
- Firebrick #B22222 ΔE 0.043
- Rusty Red #AF2F0D ΔE 0.047
- Rufous #AE2012 ΔE 0.048
- Dull Red #BB3F3F ΔE 0.049
Use #A43A3F 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.