#553733
Closest named color: Purple Brown (#673A3F). oklch(37.1% 0.044 27.7), rgb(85, 55, 51).
Aa
White text reads best on this color (10.60:1).
About this color
#553733 is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.044 and its hue 28°. 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 10.60:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.98:1 |
| White text | 10.60:1 |
Values
| HEX | #553733 |
| RGB | rgb(85, 55, 51) |
| HSL | hsl(7, 25%, 27%) |
| OKLCH | oklch(37.1% 0.044 27.7) |
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 #553733 | 10.60:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #553733 | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #553733 text on white | 10.60:1 | AAA | Lc 94.5 | Preferred for body text |
| #553733 text on black | 1.98:1 | Fails | Lc -8.1 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#F0E8E6
oklch(93.7% 0.009 34.3)
-
Step 200
200
#E5D5D2
oklch(88.5% 0.018 30.3)
-
Step 300
300
#D5B9B5
oklch(80.9% 0.033 27.5)
-
Step 400
400
#BF958F
oklch(70.7% 0.052 27.8)
-
Step 500
500
#AF7A73
oklch(63.1% 0.068 27.5)
-
Step 600
600
#9A635B
oklch(55.7% 0.073 28.7)
-
Step 700
700
#83514B
oklch(49% 0.068 27.2)
-
Step 800
800
#6B433E
oklch(42.8% 0.057 27.4)
-
Step 900
900 (this color)
#553733
oklch(37.1% 0.044 27.7)
-
Step 950
950
#33211F
oklch(27% 0.028 26.2)
#553733 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) | #3D3B33 | 0.045 |
| Deuteranopia (no green cones) | #454133 | 0.041 |
| Tritanopia (no blue cones) | #5B3336 | 0.018 |
| Achromatopsia (no color) | #3F3F3F | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553733
#553733
oklch(37.1% 0.044 27.7)
- #21474C
#21474C
oklch(37.2% 0.044 206.7)
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 #553733, 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 0.051
- Onyx #343A40 ΔE 0.060
- Mud Brown #60460F ΔE 0.075
- Chestnut #742802 ΔE 0.075
- Brownish Purple #76424E ΔE 0.083
- Gunmetal #293241 ΔE 0.086
- Charcoal #264653 ΔE 0.087
Use #553733 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.