#A03140
Closest named color: Brown (#A52A2A). oklch(48.3% 0.146 16.8), rgb(160, 49, 64).
Aa
White text reads best on this color (6.98:1).
About this color
#A03140 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.146 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.027 away. White text reads best on it, at 6.98:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.00:1 |
| White text | 6.98:1 |
Values
| HEX | #A03140 |
| RGB | rgb(160, 49, 64) |
| HSL | hsl(352, 53%, 41%) |
| OKLCH | oklch(48.3% 0.146 16.8) |
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 #A03140 | 6.98:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #A03140 | 3.00:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #A03140 text on white | 6.98:1 | AA | Lc 83.2 | Fine for body text |
| #A03140 text on black | 3.00:1 | AA large text | Lc -18.7 | 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
#F7E5E5
oklch(93.6% 0.02 17.5)
-
Step 200
200
#F2CFD0
oklch(88.4% 0.039 16)
-
Step 300
300
#EBAFB0
oklch(81% 0.07 17.6)
-
Step 400
400
#DE8287
oklch(70.7% 0.114 16.9)
-
Step 500
500
#D2606A
oklch(63.1% 0.144 16.8)
-
Step 600
600
#BD4352
oklch(55.6% 0.156 16.6)
-
Step 700
700 (this color)
#A03140
oklch(48.3% 0.146 16.8)
-
Step 800
800
#842C37
oklch(42.7% 0.121 16.5)
-
Step 900
900
#6B292F
oklch(37.8% 0.094 17.3)
-
Step 950
950
#3F191C
oklch(27.1% 0.059 17)
#A03140 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) | #4E4B40 | 0.160 |
| Deuteranopia (no green cones) | #6A623D | 0.148 |
| Tritanopia (no blue cones) | #AF1737 | 0.037 |
| Achromatopsia (no color) | #595959 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A03140
#A03140
oklch(48.3% 0.146 16.8)
- #006C6E
#006C6E
oklch(48.2% 0.082 197)
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 #A03140, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.027
- Rouge #AB1239 ΔE 0.036
- Auburn #9B2226 ΔE 0.037
- Brick #A03623 ΔE 0.039
- Firebrick #B22222 ΔE 0.046
- Light Burgundy #A8415B ΔE 0.046
- Light Maroon #A24857 ΔE 0.048
- Rufous #AE2012 ΔE 0.050
Use #A03140 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.