#603E33
Closest named color: Purple Brown (#673A3F). oklch(40% 0.052 38.7), rgb(96, 62, 51).
Aa
White text reads best on this color (9.39:1).
About this color
#603E33 is a dark, muted red. In OKLCH its lightness is 40%, its chroma 0.052 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.029 away. White text reads best on it, at 9.39:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #603E33 |
| RGB | rgb(96, 62, 51) |
| HSL | hsl(15, 31%, 29%) |
| OKLCH | oklch(40% 0.052 38.7) |
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 #603E33 | 9.39:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #603E33 | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #603E33 text on white | 9.39:1 | AAA | Lc 91.6 | Preferred for body text |
| #603E33 text on black | 2.23:1 | Fails | Lc -10.8 | 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
#F1E7E4
oklch(93.5% 0.012 37.4)
-
Step 200
200
#E7D5CF
oklch(88.6% 0.022 39.4)
-
Step 300
300
#D8B9AF
oklch(81% 0.038 38.7)
-
Step 400
400
#C39484
oklch(70.7% 0.062 39.6)
-
Step 500
500
#B37966
oklch(63.1% 0.079 38.9)
-
Step 600
600
#9E614D
oklch(55.5% 0.086 38.9)
-
Step 700
700
#87503E
oklch(49% 0.08 38.9)
-
Step 800
800
#6E4233
oklch(42.7% 0.066 39.6)
-
Step 900
900 (this color)
#603E33
oklch(40% 0.052 38.7)
-
Step 950
950
#34211B
oklch(27% 0.032 38.3)
#603E33 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) | #464232 | 0.049 |
| Deuteranopia (no green cones) | #4E4933 | 0.045 |
| Tritanopia (no blue cones) | #68393B | 0.026 |
| Achromatopsia (no color) | #464646 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603E33
#603E33
oklch(40% 0.052 38.7)
- #234E5B
#234E5B
oklch(39.9% 0.052 220.3)
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 #603E33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.029
- Mud Brown #60460F ΔE 0.054
- Brownish Purple #76424E ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.065
- Chestnut #742802 ΔE 0.066
- Green Brown #544E03 ΔE 0.082
- Onyx #343A40 ΔE 0.084
- Milk Chocolate #7F4E1E ΔE 0.085
Use #603E33 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.