#AB51CB
Closest named color: Medium Orchid (#BA55D3). oklch(59.7% 0.194 316.2), rgb(171, 81, 203).
Aa
Black text reads best on this color (4.77:1).
About this color
#AB51CB is a medium-dark, vivid purple. In OKLCH its lightness is 60%, its chroma 0.194 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.031 away. Black text reads best on it, at 4.77:1.
| Hue family | Purples |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.194) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #AB51CB |
| RGB | rgb(171, 81, 203) |
| HSL | hsl(284, 54%, 56%) |
| OKLCH | oklch(59.7% 0.194 316.2) |
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 #AB51CB | 4.40:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #AB51CB | 4.77:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #AB51CB text on white | 4.40:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #AB51CB text on black | 4.77:1 | AA | Lc -31.7 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F9F3FB
oklch(97.1% 0.012 317.7)
-
Step 100
100
#F1E5F7
oklch(93.7% 0.027 314.7)
-
Step 200
200
#E7CFF1
oklch(88.5% 0.053 316)
-
Step 300
300
#D9AEEA
oklch(80.9% 0.095 316.3)
-
Step 400
400
#C580DF
oklch(70.6% 0.152 316.3)
-
Step 500
500 (this color)
#AB51CB
oklch(59.7% 0.194 316.2)
-
Step 600
600
#A13CC3
oklch(55.5% 0.21 316.3)
-
Step 700
700
#8A2DA9
oklch(49.2% 0.196 316.2)
-
Step 800
800
#702789
oklch(42.7% 0.163 316.1)
-
Step 900
900
#5B266D
oklch(37.7% 0.126 316.6)
-
Step 950
950
#351740
oklch(26.9% 0.081 316.1)
#AB51CB 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) | #2D73CF | 0.181 |
| Deuteranopia (no green cones) | #527BC8 | 0.158 |
| Tritanopia (no blue cones) | #A96686 | 0.127 |
| Achromatopsia (no color) | #787878 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AB51CB
#AB51CB
oklch(59.7% 0.194 316.2)
- #469500
#469500
oklch(59.6% 0.178 136.3)
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 #AB51CB, closest first.
No curated palette has a color within ΔE 0.04 of #AB51CB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.031
- Amethyst #9B5FC0 ΔE 0.043
- Pinky Purple #C94CBE ΔE 0.060
- Purply #983FB2 ΔE 0.062
- Lighter Purple #A55AF4 ΔE 0.064
- Purpley Pink #C83CB9 ΔE 0.065
- Deep Lavender #8D5EB7 ΔE 0.066
- Dark Orchid #9932CC ΔE 0.068
Use #AB51CB 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.