#551B3A
Closest named color: Grape Purple (#5D1451). oklch(32.4% 0.094 350.5), rgb(85, 27, 58).
Aa
White text reads best on this color (13.09:1).
About this color
#551B3A is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.094 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.047 away. White text reads best on it, at 13.09:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.094) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.60:1 |
| White text | 13.09:1 |
Values
| HEX | #551B3A |
| RGB | rgb(85, 27, 58) |
| HSL | hsl(328, 52%, 22%) |
| OKLCH | oklch(32.4% 0.094 350.5) |
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 #551B3A | 13.09:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #551B3A | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #551B3A text on white | 13.09:1 | AAA | Lc 98.8 | Preferred for body text |
| #551B3A text on black | 1.60:1 | 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
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F5E5EC
oklch(93.7% 0.02 349.1)
-
Step 200
200
#EECFDC
oklch(88.4% 0.039 350.7)
-
Step 300
300
#E5AFC7
oklch(81% 0.07 350.4)
-
Step 400
400
#D583AA
oklch(70.7% 0.111 350.3)
-
Step 500
500
#C86195
oklch(63.1% 0.143 350.4)
-
Step 600
600
#B3457F
oklch(55.6% 0.156 350.6)
-
Step 700
700
#9A366B
oklch(49.2% 0.145 350.9)
-
Step 800
800
#7D2D58
oklch(42.7% 0.121 350.1)
-
Step 900
900 (this color)
#551B3A
oklch(32.4% 0.094 350.5)
-
Step 950
950
#3B192A
oklch(26.9% 0.059 350.5)
#551B3A 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) | #232A3B | 0.103 |
| Deuteranopia (no green cones) | #333439 | 0.092 |
| Tritanopia (no blue cones) | #5B1828 | 0.033 |
| Achromatopsia (no color) | #313131 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551B3A
#551B3A
oklch(32.4% 0.094 350.5)
- #003E2F
#003E2F
oklch(32.4% 0.064 170.5)
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 #551B3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.047
- Burgundy #610023 ΔE 0.049
- Deep Violet #490648 ΔE 0.061
- Plum Purple #4E0550 ΔE 0.064
- Claret #680018 ΔE 0.066
- Merlot #730039 ΔE 0.066
- Eggplant Purple #430541 ΔE 0.068
- Aubergine #3D0734 ΔE 0.074
Use #551B3A 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.