#553151
Closest named color: Purple Brown (#673A3F). oklch(37% 0.071 331), rgb(85, 49, 81).
Aa
White text reads best on this color (10.80:1).
About this color
#553151 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.071 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.060 away. White text reads best on it, at 10.80:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.94:1 |
| White text | 10.80:1 |
Values
| HEX | #553151 |
| RGB | rgb(85, 49, 81) |
| HSL | hsl(307, 27%, 26%) |
| OKLCH | oklch(37% 0.071 331) |
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 #553151 | 10.80:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #553151 | 1.94:1 | Fails | Lc 9.1 | Not readable |
| #553151 text on white | 10.80:1 | AAA | Lc 94.9 | Preferred for body text |
| #553151 text on black | 1.94:1 | Fails | Lc -7.8 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#F0E6EF
oklch(93.5% 0.016 328.8)
-
Step 200
200
#E5D2E2
oklch(88.4% 0.03 331)
-
Step 300
300
#D6B5D1
oklch(81% 0.053 331.1)
-
Step 400
400
#C08DB9
oklch(70.7% 0.086 331.2)
-
Step 500
500
#AF70A8
oklch(63.1% 0.109 330.8)
-
Step 600
600
#9A5793
oklch(55.5% 0.119 330.9)
-
Step 700
700
#83477D
oklch(49% 0.11 330.8)
-
Step 800
800
#6B3B66
oklch(42.8% 0.091 330.9)
-
Step 900
900 (this color)
#553151
oklch(37% 0.071 331)
-
Step 950
950
#331E31
oklch(27% 0.045 330.1)
#553151 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) | #303A52 | 0.068 |
| Deuteranopia (no green cones) | #393F50 | 0.062 |
| Tritanopia (no blue cones) | #58333D | 0.038 |
| Achromatopsia (no color) | #3D3D3D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #553151
#553151
oklch(37% 0.071 331)
- #1F4A2C
#1F4A2C
oklch(36.9% 0.071 151.4)
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 #553151, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.060
- Grape Purple #5D1451 ΔE 0.063
- Charcoal Grey #3C4142 ΔE 0.075
- Onyx #343A40 ΔE 0.075
- Space Cadet #2B2D42 ΔE 0.086
- Brownish Purple #76424E ΔE 0.087
- Gunmetal #293241 ΔE 0.087
- Velvet #750851 ΔE 0.087
Use #553151 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.