#603617
Closest named color: Chestnut (#742802). oklch(37.9% 0.074 54.5), rgb(96, 54, 23).
Aa
White text reads best on this color (10.30:1).
About this color
#603617 is a dark, moderately saturated brown. In OKLCH its lightness is 38%, its chroma 0.074 and its hue 54°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.047 away. White text reads best on it, at 10.30:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.074) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.03:1 |
| White text | 10.30:1 |
Values
| HEX | #603617 |
| RGB | rgb(96, 54, 23) |
| HSL | hsl(25, 61%, 23%) |
| OKLCH | oklch(37.9% 0.074 54.5) |
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 #603617 | 10.30:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #603617 | 2.03:1 | Fails | Lc 10.3 | Not readable |
| #603617 text on white | 10.30:1 | AAA | Lc 93.7 | Preferred for body text |
| #603617 text on black | 2.03:1 | Fails | Lc -8.9 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E0
oklch(93.6% 0.016 52.6)
-
Step 200
200
#EAD4C6
oklch(88.4% 0.031 54.7)
-
Step 300
300
#DEB89F
oklch(81% 0.056 55.1)
-
Step 400
400
#CC926A
oklch(70.7% 0.089 55.3)
-
Step 500
500
#BE7541
oklch(63.1% 0.114 54.4)
-
Step 600
600
#AA5C1E
oklch(55.6% 0.125 54.1)
-
Step 700
700
#914B0F
oklch(49% 0.115 54.2)
-
Step 800
800
#763E11
oklch(42.6% 0.096 54.3)
-
Step 900
900 (this color)
#603617
oklch(37.9% 0.074 54.5)
-
Step 950
950
#38200E
oklch(27.1% 0.047 56)
#603617 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) | #423B14 | 0.060 |
| Deuteranopia (no green cones) | #4C4417 | 0.054 |
| Tritanopia (no blue cones) | #692D2F | 0.049 |
| Achromatopsia (no color) | #404040 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603617
#603617
oklch(37.9% 0.074 54.5)
- #0B4864
#0B4864
oklch(38% 0.075 234.7)
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 #603617, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.047
- Mud Brown #60460F ΔE 0.049
- Purple Brown #673A3F ΔE 0.056
- Reddy Brown #6E1005 ΔE 0.074
- Green Brown #544E03 ΔE 0.078
- Charcoal Grey #3C4142 ΔE 0.081
- Dark Olive #373E02 ΔE 0.086
- Rust Brown #8B3103 ΔE 0.086
Use #603617 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.