#A81D38
Closest named color: Rouge (#AB1239). oklch(47.8% 0.172 17.1), rgb(168, 29, 56).
Aa
White text reads best on this color (7.24:1).
About this color
#A81D38 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.172 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.010 away. White text reads best on it, at 7.24:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.89:1 |
| White text | 7.24:1 |
Values
| HEX | #A81D38 |
| RGB | rgb(168, 29, 56) |
| HSL | hsl(348, 71%, 39%) |
| OKLCH | oklch(47.8% 0.172 17.1) |
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 #A81D38 | 7.24:1 | AAA | Lc -88.5 | Fine for body text |
| Black text on #A81D38 | 2.89:1 | Fails | Lc 20.5 | Dividers and decoration only |
| #A81D38 text on white | 7.24:1 | AAA | Lc 83.5 | Fine for body text |
| #A81D38 text on black | 2.89:1 | Fails | Lc -18.4 | 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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F6CDCE
oklch(88.4% 0.046 16.4)
-
Step 300
300
#F2ABAD
oklch(80.9% 0.084 17.2)
-
Step 400
400
#E77B82
oklch(70.6% 0.133 17)
-
Step 500
500
#DD5563
oklch(63.2% 0.17 17.3)
-
Step 600
600
#C8324A
oklch(55.5% 0.185 17.1)
-
Step 700
700 (this color)
#A81D38
oklch(47.8% 0.172 17.1)
-
Step 800
800
#8C2031
oklch(42.7% 0.143 17.3)
-
Step 900
900
#71222B
oklch(37.8% 0.111 17.7)
-
Step 950
950
#42151A
oklch(26.9% 0.07 16.4)
#A81D38 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) | #484438 | 0.191 |
| Deuteranopia (no green cones) | #6A6134 | 0.175 |
| Tritanopia (no blue cones) | #B90029 | 0.036 |
| Achromatopsia (no color) | #575757 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A81D38
#A81D38
oklch(47.8% 0.172 17.1)
- #006B6D
#006B6D
oklch(47.9% 0.081 197)
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 #A81D38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.010
- Brown #A52A2A ΔE 0.028
- Auburn #9B2226 ΔE 0.035
- Raspberry #B00149 ΔE 0.036
- Firebrick #B22222 ΔE 0.036
- Cranberry #9E003A ΔE 0.036
- Rufous #AE2012 ΔE 0.042
- Rose Red #BE013C ΔE 0.044
Use #A81D38 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.