#603B2E
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.057 40.1), rgb(96, 59, 46).
Aa
White text reads best on this color (9.71:1).
About this color
#603B2E is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.057 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.031 away. White text reads best on it, at 9.71:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.16:1 |
| White text | 9.71:1 |
Values
| HEX | #603B2E |
| RGB | rgb(96, 59, 46) |
| HSL | hsl(16, 35%, 28%) |
| OKLCH | oklch(39.3% 0.057 40.1) |
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 #603B2E | 9.71:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #603B2E | 2.16:1 | Fails | Lc 11.6 | Not readable |
| #603B2E text on white | 9.71:1 | AAA | Lc 92.4 | Preferred for body text |
| #603B2E text on black | 2.16:1 | Fails | Lc -10.1 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E8D4CE
oklch(88.5% 0.024 37.4)
-
Step 300
300
#DAB8AC
oklch(80.9% 0.043 40.4)
-
Step 400
400
#C69380
oklch(70.7% 0.068 41.3)
-
Step 500
500
#B77761
oklch(63.1% 0.087 39.7)
-
Step 600
600
#A25F47
oklch(55.6% 0.095 40.4)
-
Step 700
700
#8B4E39
oklch(49.1% 0.089 39.6)
-
Step 800
800
#71402F
oklch(42.7% 0.074 39.8)
-
Step 900
900 (this color)
#603B2E
oklch(39.3% 0.057 40.1)
-
Step 950
950
#362019
oklch(27% 0.037 38.4)
#603B2E 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) | #44402D | 0.053 |
| Deuteranopia (no green cones) | #4D472E | 0.048 |
| Tritanopia (no blue cones) | #683538 | 0.030 |
| Achromatopsia (no color) | #444444 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603B2E
#603B2E
oklch(39.3% 0.057 40.1)
- #1C4D5B
#1C4D5B
oklch(39.4% 0.057 219.9)
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 #603B2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.031
- Mud Brown #60460F ΔE 0.054
- Chestnut #742802 ΔE 0.059
- Brownish Purple #76424E ΔE 0.067
- Charcoal Grey #3C4142 ΔE 0.067
- Green Brown #544E03 ΔE 0.084
- Onyx #343A40 ΔE 0.084
- Reddy Brown #6E1005 ΔE 0.086
Use #603B2E 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.