#AC603D
Closest named color: Earth (#A2653E). oklch(56.9% 0.11 44.6), rgb(172, 96, 61).
Aa
White text reads best on this color (4.67:1).
About this color
#AC603D is a medium-dark, moderately saturated brown. In OKLCH its lightness is 57%, its chroma 0.110 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Earth (#A2653E), ΔE 0.021 away. White text reads best on it, at 4.67:1.
| Hue family | Browns |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Earth (#A2653E) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #AC603D |
| RGB | rgb(172, 96, 61) |
| HSL | hsl(19, 48%, 46%) |
| OKLCH | oklch(56.9% 0.11 44.6) |
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 #AC603D | 4.67:1 | AA | Lc -77.6 | Fine for body text |
| Black text on #AC603D | 4.49:1 | AA large text | Lc 32.0 | Non-text elements, placeholder text |
| #AC603D text on white | 4.67:1 | AA | Lc 72.1 | Content text, not long reading |
| #AC603D text on black | 4.49:1 | AA large text | Lc -29.6 | 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
#F3E7E2
oklch(93.6% 0.015 44.2)
-
Step 200
200
#EAD4CB
oklch(88.6% 0.028 43.6)
-
Step 300
300
#DDB7A7
oklch(80.9% 0.049 44.1)
-
Step 400
400
#CB9178
oklch(70.7% 0.079 44.3)
-
Step 500
500
#BC7554
oklch(63.1% 0.101 45.4)
-
Step 600
600 (this color)
#AC603D
oklch(56.9% 0.11 44.6)
-
Step 700
700
#904B2B
oklch(49.1% 0.104 44.4)
-
Step 800
800
#753E25
oklch(42.7% 0.085 44.3)
-
Step 900
900
#5E3523
oklch(37.6% 0.066 44)
-
Step 950
950
#372015
oklch(27% 0.041 46.1)
#AC603D 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) | #756A3A | 0.099 |
| Deuteranopia (no green cones) | #877B3C | 0.092 |
| Tritanopia (no blue cones) | #BC5258 | 0.061 |
| Achromatopsia (no color) | #747474 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC603D
#AC603D
oklch(56.9% 0.11 44.6)
- #0084A6
#0084A6
oklch(57% 0.107 224.2)
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 #AC603D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Earth #A2653E ΔE 0.021
- Copper #B66325 ΔE 0.031
- Clay #B66A50 ΔE 0.036
- Orangey Brown #B16002 ΔE 0.039
- Raw Umber #A75E09 ΔE 0.039
- Burnt Siena #B75203 ΔE 0.042
- Sienna #A0522D ΔE 0.043
- Sepia #985E2B ΔE 0.043
Use #AC603D 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.