#AA5742
Closest named color: Sienna (#A0522D). oklch(55.2% 0.114 35.3), rgb(170, 87, 66).
Aa
White text reads best on this color (5.05:1).
About this color
#AA5742 is a medium-dark, moderately saturated red. In OKLCH its lightness is 55%, its chroma 0.114 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Sienna (#A0522D), ΔE 0.032 away. White text reads best on it, at 5.05:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Sienna (#A0522D) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #AA5742 |
| RGB | rgb(170, 87, 66) |
| HSL | hsl(12, 44%, 46%) |
| OKLCH | oklch(55.2% 0.114 35.3) |
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 #AA5742 | 5.05:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #AA5742 | 4.15:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #AA5742 text on white | 5.05:1 | AA | Lc 74.5 | Content text, not long reading |
| #AA5742 text on black | 4.15:1 | AA large text | Lc -27.2 | 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 600.
-
Step 50
50
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#DFB6AA
oklch(80.9% 0.051 36.9)
-
Step 400
400
#CE8E7E
oklch(70.6% 0.082 34.6)
-
Step 500
500
#C0715D
oklch(63.1% 0.105 35.1)
-
Step 600
600 (this color)
#AA5742
oklch(55.2% 0.114 35.3)
-
Step 700
700
#934835
oklch(49.2% 0.106 35.3)
-
Step 800
800
#773B2C
oklch(42.6% 0.088 35.1)
-
Step 900
900
#603328
oklch(37.6% 0.068 34.7)
-
Step 950
950
#391E18
oklch(27% 0.044 33.4)
#AA5742 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) | #6C6440 | 0.113 |
| Deuteranopia (no green cones) | #807541 | 0.103 |
| Tritanopia (no blue cones) | #B94852 | 0.051 |
| Achromatopsia (no color) | #6F6F6F | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA5742
#AA5742
oklch(55.2% 0.114 35.3)
- #008096
#008096
oklch(55.2% 0.098 215.3)
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 #AA5742, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sienna #A0522D ΔE 0.032
- Earth #A2653E ΔE 0.038
- Cinnamon #AC4F06 ΔE 0.044
- Dusty Red #B9484E ΔE 0.047
- Burnt Siena #B75203 ΔE 0.047
- Sepia #985E2B ΔE 0.049
- Clay #B66A50 ΔE 0.052
- Copper #B66325 ΔE 0.053
Use #AA5742 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.