#533B37
Closest named color: Purple Brown (#673A3F). oklch(37.8% 0.035 29.5), rgb(83, 59, 55).
Aa
White text reads best on this color (10.25:1).
About this color
#533B37 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.035 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.042 away. White text reads best on it, at 10.25:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #533B37 |
| RGB | rgb(83, 59, 55) |
| HSL | hsl(9, 20%, 27%) |
| OKLCH | oklch(37.8% 0.035 29.5) |
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 #533B37 | 10.25:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #533B37 | 2.04:1 | Fails | Lc 10.2 | Not readable |
| #533B37 text on white | 10.25:1 | AAA | Lc 93.8 | Preferred for body text |
| #533B37 text on black | 2.04:1 | Fails | Lc -8.8 | 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
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E3D6D3
oklch(88.6% 0.015 33.1)
-
Step 300
300
#D1BBB7
oklch(81% 0.026 30)
-
Step 400
400
#B99791
oklch(70.6% 0.042 29.8)
-
Step 500
500
#A87E77
oklch(63.2% 0.054 29.4)
-
Step 600
600
#92675F
oklch(55.6% 0.057 30.8)
-
Step 700
700
#7D554F
oklch(49.1% 0.055 28.7)
-
Step 800
800
#654641
oklch(42.7% 0.044 29.3)
-
Step 900
900 (this color)
#533B37
oklch(37.8% 0.035 29.5)
-
Step 950
950
#302220
oklch(26.8% 0.022 27.9)
#533B37 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) | #403E37 | 0.035 |
| Deuteranopia (no green cones) | #464337 | 0.033 |
| Tritanopia (no blue cones) | #58383A | 0.015 |
| Achromatopsia (no color) | #414141 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #533B37
#533B37
oklch(37.8% 0.035 29.5)
- #2B474C
#2B474C
oklch(37.8% 0.035 210)
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 #533B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.042
- Onyx #343A40 ΔE 0.057
- Mud Brown #60460F ΔE 0.071
- Dark Slate Gray #2F4F4F ΔE 0.076
- Charcoal #264653 ΔE 0.078
- Brownish Purple #76424E ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.082
Use #533B37 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.