#A66558
Closest named color: Earth (#A2653E). oklch(57.5% 0.087 32), rgb(166, 101, 88).
Aa
Black text reads best on this color (4.62:1).
About this color
#A66558 is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.087 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.035 away. Black text reads best on it, at 4.62:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.62:1 |
| White text | 4.54:1 |
Values
| HEX | #A66558 |
| RGB | rgb(166, 101, 88) |
| HSL | hsl(10, 31%, 50%) |
| OKLCH | oklch(57.5% 0.087 32) |
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 #A66558 | 4.54:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #A66558 | 4.62:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #A66558 text on white | 4.54:1 | AA | Lc 71.3 | Content text, not long reading |
| #A66558 text on black | 4.62:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F1E7E5
oklch(93.5% 0.011 31.1)
-
Step 200
200
#E7D4D0
oklch(88.4% 0.022 31.8)
-
Step 300
300
#D9B8B1
oklch(80.9% 0.039 32)
-
Step 400
400
#C59388
oklch(70.8% 0.063 32.7)
-
Step 500
500
#B5776B
oklch(63.1% 0.081 31.4)
-
Step 600
600 (this color)
#A66558
oklch(57.5% 0.087 32)
-
Step 700
700
#894F43
oklch(49.2% 0.081 32.6)
-
Step 800
800
#6F4137
oklch(42.8% 0.067 33.1)
-
Step 900
900
#5A3730
oklch(37.7% 0.052 31.9)
-
Step 950
950
#35201C
oklch(26.9% 0.034 31.2)
#A66558 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) | #746E57 | 0.087 |
| Deuteranopia (no green cones) | #847B57 | 0.080 |
| Tritanopia (no blue cones) | #B35B62 | 0.039 |
| Achromatopsia (no color) | #767676 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A66558
#A66558
oklch(57.5% 0.087 32)
- #2A8697
#2A8697
oklch(57.4% 0.087 212.6)
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 #A66558, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.035
- Clay #B66A50 ΔE 0.035
- Pinkish Brown #B17261 ΔE 0.040
- Reddish Grey #997570 ΔE 0.046
- Mocha #9D7651 ΔE 0.051
- Adobe #BD6C48 ΔE 0.053
- Dusky Rose #BA6873 ΔE 0.053
- Clay Brown #B2713D ΔE 0.057
Use #A66558 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.