#55103B
Closest named color: Grape Purple (#5D1451). oklch(31.2% 0.11 347.3), rgb(85, 16, 59).
Aa
White text reads best on this color (13.78:1).
About this color
#55103B is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.110 and its hue 347°. 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 13.78:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.52:1 |
| White text | 13.78:1 |
Values
| HEX | #55103B |
| RGB | rgb(85, 16, 59) |
| HSL | hsl(323, 68%, 20%) |
| OKLCH | oklch(31.2% 0.11 347.3) |
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 #55103B | 13.78:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #55103B | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #55103B text on white | 13.78:1 | AAA | Lc 99.5 | Preferred for body text |
| #55103B text on black | 1.52:1 | 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
#FFF1F8
oklch(97.1% 0.018 345.6)
-
Step 100
100
#FEE0EF
oklch(93.6% 0.038 346.2)
-
Step 200
200
#FEC6E2
oklch(88.4% 0.073 347.2)
-
Step 300
300
#FE9DD0
oklch(80.9% 0.13 347.6)
-
Step 400
400
#F85EB9
oklch(70.8% 0.209 347.3)
-
Step 500
500
#EF00A7
oklch(63.1% 0.266 347.3)
-
Step 600
600
#CA008C
oklch(55.6% 0.234 347.5)
-
Step 700
700
#AB0076
oklch(49.1% 0.207 347.4)
-
Step 800
800
#8D0061
oklch(42.7% 0.18 347.2)
-
Step 900
900
#770051
oklch(37.7% 0.159 347.4)
-
Step 950
950 (this color)
#55103B
oklch(31.2% 0.11 347.3)
#55103B 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) | #1A253C | 0.123 |
| Deuteranopia (no green cones) | #2E3139 | 0.108 |
| Tritanopia (no blue cones) | #5C0D24 | 0.044 |
| Achromatopsia (no color) | #2D2D2D | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55103B
#55103B
oklch(31.2% 0.11 347.3)
- #003B2A
#003B2A
oklch(31.3% 0.064 167)
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 #55103B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.042
- Deep Violet #490648 ΔE 0.046
- Burgundy #610023 ΔE 0.049
- Plum Purple #4E0550 ΔE 0.049
- Eggplant Purple #430541 ΔE 0.053
- Aubergine #3D0734 ΔE 0.062
- Dark Plum #3F012C ΔE 0.066
- Merlot #730039 ΔE 0.066
Use #55103B 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.