#AC644C
Closest named color: Clay (#B66A50). oklch(57.9% 0.1 39.1), rgb(172, 100, 76).
Aa
Black text reads best on this color (4.68:1).
About this color
#AC644C is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.100 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.025 away. Black text reads best on it, at 4.68:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.100) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.68:1 |
| White text | 4.48:1 |
Values
| HEX | #AC644C |
| RGB | rgb(172, 100, 76) |
| HSL | hsl(15, 39%, 49%) |
| OKLCH | oklch(57.9% 0.1 39.1) |
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 #AC644C | 4.48:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #AC644C | 4.68:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #AC644C text on white | 4.48:1 | AA large text | Lc 70.9 | Content text, not long reading |
| #AC644C text on black | 4.68:1 | AA | Lc -30.8 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F2E7E3
oklch(93.6% 0.013 41.2)
-
Step 200
200
#E9D4CD
oklch(88.5% 0.025 39.4)
-
Step 300
300
#DBB7AB
oklch(80.8% 0.045 39.3)
-
Step 400
400
#C9927F
oklch(70.8% 0.072 39.9)
-
Step 500
500
#B9765F
oklch(63.1% 0.091 39.7)
-
Step 600
600 (this color)
#AC644C
oklch(57.9% 0.1 39.1)
-
Step 700
700
#8D4D37
oklch(49.2% 0.093 39.6)
-
Step 800
800
#723F2E
oklch(42.6% 0.077 39.1)
-
Step 900
900
#5D3629
oklch(37.7% 0.06 39.2)
-
Step 950
950
#362018
oklch(27% 0.037 40.7)
#AC644C 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) | #766E4A | 0.095 |
| Deuteranopia (no green cones) | #887D4B | 0.087 |
| Tritanopia (no blue cones) | #BB585E | 0.050 |
| Achromatopsia (no color) | #777777 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC644C
#AC644C
oklch(57.9% 0.1 39.1)
- #1687A2
#1687A2
oklch(57.8% 0.1 219.5)
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 #AC644C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.025
- Earth #A2653E ΔE 0.027
- Pinkish Brown #B17261 ΔE 0.039
- Adobe #BD6C48 ΔE 0.040
- Copper #B66325 ΔE 0.041
- Clay Brown #B2713D ΔE 0.044
- Mocha #9D7651 ΔE 0.050
- Orangey Brown #B16002 ΔE 0.053
Use #AC644C 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.