#603F2B
Closest named color: Purple Brown (#673A3F). oklch(40.1% 0.056 51.7), rgb(96, 63, 43).
Aa
White text reads best on this color (9.36:1).
About this color
#603F2B is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.056 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.041 away. White text reads best on it, at 9.36:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.36:1 |
Values
| HEX | #603F2B |
| RGB | rgb(96, 63, 43) |
| HSL | hsl(23, 38%, 27%) |
| OKLCH | oklch(40.1% 0.056 51.7) |
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 #603F2B | 9.36:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #603F2B | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #603F2B text on white | 9.36:1 | AAA | Lc 91.5 | Preferred for body text |
| #603F2B text on black | 2.24:1 | Fails | Lc -10.9 | 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
#F9F4F2
oklch(97% 0.006 43.3)
-
Step 100
100
#F1E8E3
oklch(93.7% 0.012 51.3)
-
Step 200
200
#E6D5CB
oklch(88.4% 0.023 52.7)
-
Step 300
300
#D8BAA8
oklch(81% 0.043 52.9)
-
Step 400
400
#C3957A
oklch(70.6% 0.067 51.7)
-
Step 500
500
#B37A58
oklch(63% 0.086 51.4)
-
Step 600
600
#9E633D
oklch(55.6% 0.093 52.5)
-
Step 700
700
#87512F
oklch(49% 0.087 51.6)
-
Step 800
800
#6E4328
oklch(42.7% 0.072 51.9)
-
Step 900
900 (this color)
#603F2B
oklch(40.1% 0.056 51.7)
-
Step 950
950
#342116
oklch(26.9% 0.035 50.8)
#603F2B 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) | #484229 | 0.045 |
| Deuteranopia (no green cones) | #50492B | 0.040 |
| Tritanopia (no blue cones) | #68393A | 0.036 |
| Achromatopsia (no color) | #474747 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603F2B
#603F2B
oklch(40.1% 0.056 51.7)
- #254D61
#254D61
oklch(40% 0.056 232.3)
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 #603F2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.041
- Mud Brown #60460F ΔE 0.041
- Chestnut #742802 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.069
- Brownish Purple #76424E ΔE 0.070
- Green Brown #544E03 ΔE 0.071
- Milk Chocolate #7F4E1E ΔE 0.079
- Olive Brown #645403 ΔE 0.080
Use #603F2B 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.