#A03243
Closest named color: Brown (#A52A2A). oklch(48.5% 0.145 15.5), rgb(160, 50, 67).
Aa
White text reads best on this color (6.92:1).
About this color
#A03243 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.145 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.031 away. White text reads best on it, at 6.92:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.145) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.03:1 |
| White text | 6.92:1 |
Values
| HEX | #A03243 |
| RGB | rgb(160, 50, 67) |
| HSL | hsl(351, 52%, 41%) |
| OKLCH | oklch(48.5% 0.145 15.5) |
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 #A03243 | 6.92:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #A03243 | 3.03:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #A03243 text on white | 6.92:1 | AA | Lc 83.0 | Fine for body text |
| #A03243 text on black | 3.03:1 | AA large text | Lc -18.9 | 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
#F7E5E5
oklch(93.6% 0.02 17.5)
-
Step 200
200
#F2CFD1
oklch(88.5% 0.039 14)
-
Step 300
300
#EAAFB2
oklch(80.9% 0.069 15.3)
-
Step 400
400
#DD8289
oklch(70.6% 0.112 15.4)
-
Step 500
500
#D1606C
oklch(63% 0.143 15.6)
-
Step 600
600
#BC4354
oklch(55.5% 0.155 15.5)
-
Step 700
700 (this color)
#A03243
oklch(48.5% 0.145 15.5)
-
Step 800
800
#842C39
oklch(42.7% 0.121 15.1)
-
Step 900
900
#6A2931
oklch(37.7% 0.093 15.2)
-
Step 950
950
#3E191D
oklch(27% 0.058 15.1)
#A03243 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) | #4E4B43 | 0.159 |
| Deuteranopia (no green cones) | #6A6240 | 0.146 |
| Tritanopia (no blue cones) | #AF1A39 | 0.037 |
| Achromatopsia (no color) | #5A5A5A | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A03243
#A03243
oklch(48.5% 0.145 15.5)
- #006D6E
#006D6E
oklch(48.5% 0.083 195.9)
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 #A03243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.031
- Rouge #AB1239 ΔE 0.038
- Auburn #9B2226 ΔE 0.040
- Brick #A03623 ΔE 0.043
- Light Burgundy #A8415B ΔE 0.043
- Light Maroon #A24857 ΔE 0.045
- Firebrick #B22222 ΔE 0.049
- Cranberry #9E003A ΔE 0.052
Use #A03243 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.