#603511
Closest named color: Chestnut (#742802). oklch(37.6% 0.078 56.6), rgb(96, 53, 17).
Aa
White text reads best on this color (10.42:1).
About this color
#603511 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.078 and its hue 57°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.046 away. White text reads best on it, at 10.42:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.078) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.01:1 |
| White text | 10.42:1 |
Values
| HEX | #603511 |
| RGB | rgb(96, 53, 17) |
| HSL | hsl(27, 70%, 22%) |
| OKLCH | oklch(37.6% 0.078 56.6) |
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 #603511 | 10.42:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #603511 | 2.01:1 | Fails | Lc 10.0 | Not readable |
| #603511 text on white | 10.42:1 | AAA | Lc 93.9 | Preferred for body text |
| #603511 text on black | 2.01:1 | Fails | Lc -8.6 | Not readable |
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 900.
-
Step 50
50
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F3E7DF
oklch(93.5% 0.017 56.2)
-
Step 200
200
#EBD4C5
oklch(88.5% 0.033 55.3)
-
Step 300
300
#DFB89C
oklch(81% 0.059 57.4)
-
Step 400
400
#CE9166
oklch(70.7% 0.094 55.7)
-
Step 500
500
#BF7539
oklch(63.1% 0.119 57.1)
-
Step 600
600
#AB5C0E
oklch(55.7% 0.13 56.8)
-
Step 700
700
#924B00
oklch(49.1% 0.12 56.3)
-
Step 800
800
#773E06
oklch(42.7% 0.1 56.7)
-
Step 900
900 (this color)
#603511
oklch(37.6% 0.078 56.6)
-
Step 950
950
#39200C
oklch(27.2% 0.05 57.1)
#603511 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) | #423A0C | 0.061 |
| Deuteranopia (no green cones) | #4C4411 | 0.056 |
| Tritanopia (no blue cones) | #6A2C2E | 0.053 |
| Achromatopsia (no color) | #404040 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603511
#603511
oklch(37.6% 0.078 56.6)
- #064765
#064765
oklch(37.7% 0.078 236)
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 #603511, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.046
- Mud Brown #60460F ΔE 0.049
- Purple Brown #673A3F ΔE 0.061
- Reddy Brown #6E1005 ΔE 0.073
- Green Brown #544E03 ΔE 0.078
- Dark Olive #373E02 ΔE 0.084
- Charcoal Grey #3C4142 ΔE 0.085
- Rust Brown #8B3103 ΔE 0.087
Use #603511 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.