#551B3D
Closest named color: Grape Purple (#5D1451). oklch(32.5% 0.096 347.5), rgb(85, 27, 61).
Aa
White text reads best on this color (13.04:1).
About this color
#551B3D is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.096 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.042 away. White text reads best on it, at 13.04:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.096) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.61:1 |
| White text | 13.04:1 |
Values
| HEX | #551B3D |
| RGB | rgb(85, 27, 61) |
| HSL | hsl(325, 52%, 22%) |
| OKLCH | oklch(32.5% 0.096 347.5) |
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 #551B3D | 13.04:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #551B3D | 1.61:1 | Fails | Lc 0.0 | Not readable |
| #551B3D text on white | 13.04:1 | AAA | Lc 98.7 | Preferred for body text |
| #551B3D text on black | 1.61:1 | Fails | Lc 0.0 | 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
#FBF3F7
oklch(97.1% 0.01 345.4)
-
Step 100
100
#F5E5EC
oklch(93.7% 0.02 349.1)
-
Step 200
200
#EECFDE
oklch(88.5% 0.04 347.1)
-
Step 300
300
#E4AEC9
oklch(80.8% 0.072 347.3)
-
Step 400
400
#D582AE
oklch(70.7% 0.115 347.4)
-
Step 500
500
#C7609A
oklch(63% 0.147 347.2)
-
Step 600
600
#B24484
oklch(55.5% 0.159 347.5)
-
Step 700
700
#993570
oklch(49.1% 0.148 347.5)
-
Step 800
800
#7C2D5B
oklch(42.7% 0.122 347.5)
-
Step 900
900 (this color)
#551B3D
oklch(32.5% 0.096 347.5)
-
Step 950
950
#3B192C
oklch(27% 0.06 347.2)
#551B3D 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) | #222A3E | 0.104 |
| Deuteranopia (no green cones) | #32353C | 0.094 |
| Tritanopia (no blue cones) | #5B1929 | 0.037 |
| Achromatopsia (no color) | #313131 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551B3D
#551B3D
oklch(32.5% 0.096 347.5)
- #003F2D
#003F2D
oklch(32.6% 0.067 166.9)
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 #551B3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.042
- Burgundy #610023 ΔE 0.053
- Deep Violet #490648 ΔE 0.058
- Plum Purple #4E0550 ΔE 0.060
- Eggplant Purple #430541 ΔE 0.066
- Merlot #730039 ΔE 0.066
- Claret #680018 ΔE 0.070
- Aubergine #3D0734 ΔE 0.074
Use #551B3D 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.