#B557CB
Closest named color: Medium Orchid (#BA55D3). oklch(61.7% 0.19 319.7), rgb(181, 87, 203).
Aa
Black text reads best on this color (5.19:1).
About this color
#B557CB is a medium-dark, vivid purple. In OKLCH its lightness is 62%, its chroma 0.190 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Orchid (#BA55D3), ΔE 0.015 away. Black text reads best on it, at 5.19:1.
| Hue family | Purples |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.190) |
| Temperature | in between |
| Nearest name | Medium Orchid (#BA55D3) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #B557CB |
| RGB | rgb(181, 87, 203) |
| HSL | hsl(289, 53%, 57%) |
| OKLCH | oklch(61.7% 0.19 319.7) |
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 #B557CB | 4.04:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #B557CB | 5.19:1 | AA | Lc 36.9 | Non-text elements, placeholder text |
| #B557CB text on white | 4.04:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #B557CB text on black | 5.19:1 | AA | Lc -34.5 | 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
#F2E4F5
oklch(93.5% 0.027 320.2)
-
Step 200
200
#E9CFEF
oklch(88.6% 0.051 319.9)
-
Step 300
300
#DBAEE6
oklch(80.9% 0.091 319.6)
-
Step 400
400
#C880DA
oklch(70.7% 0.148 319.4)
-
Step 500
500 (this color)
#B557CB
oklch(61.7% 0.19 319.7)
-
Step 600
600
#A53CBC
oklch(55.6% 0.206 319.9)
-
Step 700
700
#8D2DA2
oklch(49.1% 0.191 319.8)
-
Step 800
800
#732784
oklch(42.8% 0.159 319.7)
-
Step 900
900
#5D266A
oklch(37.8% 0.124 319.5)
-
Step 950
950
#36173E
oklch(26.9% 0.079 319)
#B557CB 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) | #3E78CF | 0.180 |
| Deuteranopia (no green cones) | #5F82C8 | 0.158 |
| Tritanopia (no blue cones) | #B66989 | 0.119 |
| Achromatopsia (no color) | #7E7E7E | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B557CB
#B557CB
oklch(61.7% 0.19 319.7)
- #399F14
#399F14
oklch(61.9% 0.19 139.6)
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 #B557CB, closest first.
No curated palette has a color within ΔE 0.04 of #B557CB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Orchid #BA55D3 ΔE 0.015
- Pinky Purple #C94CBE ΔE 0.043
- Amethyst #9B5FC0 ΔE 0.051
- Purpley Pink #C83CB9 ΔE 0.057
- Lighter Purple #A55AF4 ΔE 0.069
- Soft Purple #A66FB5 ΔE 0.071
- Light Urple #B36FF6 ΔE 0.075
- Deep Lilac #966EBD ΔE 0.075
Use #B557CB 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.