#9551CB
Closest named color: Amethyst (#9B5FC0). oklch(57.1% 0.186 307.2), rgb(149, 81, 203).
Aa
White text reads best on this color (4.86:1).
About this color
#9551CB is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.186 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.040 away. White text reads best on it, at 4.86:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.31:1 |
| White text | 4.86:1 |
Values
| HEX | #9551CB |
| RGB | rgb(149, 81, 203) |
| HSL | hsl(273, 54%, 56%) |
| OKLCH | oklch(57.1% 0.186 307.2) |
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 #9551CB | 4.86:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #9551CB | 4.31:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #9551CB text on white | 4.86:1 | AA | Lc 73.2 | Content text, not long reading |
| #9551CB text on black | 4.31:1 | AA large text | Lc -28.5 | Dividers and decoration only |
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 600.
-
Step 50
50
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F7
oklch(93.6% 0.024 307)
-
Step 200
200
#E1D2F2
oklch(88.6% 0.046 306.6)
-
Step 300
300
#CFB3EB
oklch(80.9% 0.083 307.3)
-
Step 400
400
#B789E1
oklch(70.7% 0.133 307.3)
-
Step 500
500
#A568D9
oklch(63.1% 0.172 307.1)
-
Step 600
600 (this color)
#9551CB
oklch(57.1% 0.186 307.2)
-
Step 700
700
#7B3CAB
oklch(49.1% 0.173 307.3)
-
Step 800
800
#64338B
oklch(42.8% 0.143 307)
-
Step 900
900
#512E6F
oklch(37.7% 0.111 306.7)
-
Step 950
950
#301B41
oklch(27% 0.072 307.8)
#9551CB 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) | #1A6FCF | 0.157 |
| Deuteranopia (no green cones) | #3C72C8 | 0.140 |
| Tritanopia (no blue cones) | #8C6986 | 0.134 |
| Achromatopsia (no color) | #717171 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9551CB
#9551CB
oklch(57.1% 0.186 307.2)
- #608600
#608600
oklch(57% 0.147 126.9)
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 #9551CB, closest first.
No curated palette has a color within ΔE 0.04 of #9551CB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.040
- Deep Lavender #8D5EB7 ΔE 0.046
- Purpley #8756E4 ΔE 0.046
- Purply #983FB2 ΔE 0.049
- Dark Orchid #9932CC ΔE 0.053
- Lighter Purple #A55AF4 ΔE 0.069
- Light Indigo #6D5ACF ΔE 0.069
- Medium Purple #9370DB ΔE 0.070
Use #9551CB 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.