#603F2F
Closest named color: Purple Brown (#673A3F). oklch(40.1% 0.053 46.6), rgb(96, 63, 47).
Aa
White text reads best on this color (9.33:1).
About this color
#603F2F is a dark, muted brown. In OKLCH its lightness is 40%, its chroma 0.053 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.035 away. White text reads best on it, at 9.33:1.
| Hue family | Browns |
| Lightness | dark (40%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.24:1 |
| White text | 9.33:1 |
Values
| HEX | #603F2F |
| RGB | rgb(96, 63, 47) |
| HSL | hsl(20, 34%, 28%) |
| OKLCH | oklch(40.1% 0.053 46.6) |
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 #603F2F | 9.33:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #603F2F | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #603F2F text on white | 9.33:1 | AAA | Lc 91.4 | Preferred for body text |
| #603F2F 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
#E6D5CD
oklch(88.5% 0.022 47)
-
Step 300
300
#D7B9AB
oklch(80.8% 0.04 46.5)
-
Step 400
400
#C3957F
oklch(70.8% 0.064 46.7)
-
Step 500
500
#B37A5F
oklch(63.1% 0.082 46.1)
-
Step 600
600
#9E6245
oklch(55.6% 0.089 46.2)
-
Step 700
700
#875136
oklch(49.1% 0.083 46.8)
-
Step 800
800
#6E432D
oklch(42.8% 0.069 47.4)
-
Step 900
900 (this color)
#603F2F
oklch(40.1% 0.053 46.6)
-
Step 950
950
#342118
oklch(26.9% 0.034 46.2)
#603F2F 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) | #48422E | 0.045 |
| Deuteranopia (no green cones) | #50492F | 0.040 |
| Tritanopia (no blue cones) | #68393B | 0.033 |
| Achromatopsia (no color) | #474747 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603F2F
#603F2F
oklch(40.1% 0.053 46.6)
- #254E5E
#254E5E
oklch(40.1% 0.053 226)
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 #603F2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.035
- Mud Brown #60460F ΔE 0.046
- Chestnut #742802 ΔE 0.065
- Brownish Purple #76424E ΔE 0.065
- Charcoal Grey #3C4142 ΔE 0.067
- Green Brown #544E03 ΔE 0.075
- Milk Chocolate #7F4E1E ΔE 0.081
- Olive Brown #645403 ΔE 0.084
Use #603F2F 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.