#551740
Closest named color: Grape Purple (#5D1451). oklch(32.1% 0.104 344), rgb(85, 23, 64).
Aa
White text reads best on this color (13.26:1).
About this color
#551740 is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.104 and its hue 344°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.035 away. White text reads best on it, at 13.26:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.104) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.58:1 |
| White text | 13.26:1 |
Values
| HEX | #551740 |
| RGB | rgb(85, 23, 64) |
| HSL | hsl(320, 57%, 21%) |
| OKLCH | oklch(32.1% 0.104 344) |
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 #551740 | 13.26:1 | AAA | Lc -102.3 | Preferred for body text |
| Black text on #551740 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #551740 text on white | 13.26:1 | AAA | Lc 99.0 | Preferred for body text |
| #551740 text on black | 1.58:1 | 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 950.
-
Step 50
50
#FEF1F8
oklch(97% 0.017 343.6)
-
Step 100
100
#FCE1F0
oklch(93.6% 0.035 343.2)
-
Step 200
200
#FBC8E4
oklch(88.5% 0.068 344.5)
-
Step 300
300
#F9A0D4
oklch(81% 0.123 344.3)
-
Step 400
400
#F165BE
oklch(70.8% 0.197 344.2)
-
Step 500
500
#E724AE
oklch(63.1% 0.252 343.9)
-
Step 600
600
#C80094
oklch(55.6% 0.237 344.2)
-
Step 700
700
#A9007D
oklch(49.1% 0.21 344)
-
Step 800
800
#8C0067
oklch(42.8% 0.183 344)
-
Step 900
900
#760056
oklch(37.8% 0.161 344.1)
-
Step 950
950 (this color)
#551740
oklch(32.1% 0.104 344)
#551740 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) | #1D2941 | 0.114 |
| Deuteranopia (no green cones) | #30333F | 0.099 |
| Tritanopia (no blue cones) | #5B1729 | 0.044 |
| Achromatopsia (no color) | #303030 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #551740
#551740
oklch(32.1% 0.104 344)
- #003E2A
#003E2A
oklch(32.2% 0.068 164.3)
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 #551740, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.035
- Deep Violet #490648 ΔE 0.048
- Plum Purple #4E0550 ΔE 0.049
- Burgundy #610023 ΔE 0.056
- Eggplant Purple #430541 ΔE 0.058
- Merlot #730039 ΔE 0.067
- Aubergine #3D0734 ΔE 0.069
- Velvet #750851 ΔE 0.074
Use #551740 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.