#B573EC
Closest named color: Light Urple (#B36FF6). oklch(67.5% 0.181 307.4), rgb(181, 115, 236).
Aa
Black text reads best on this color (6.62:1).
About this color
#B573EC is a medium-light, vivid purple. In OKLCH its lightness is 68%, its chroma 0.181 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.019 away. Black text reads best on it, at 6.62:1.
| Hue family | Purples |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.181) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.62:1 |
| White text | 3.16:1 |
Values
| HEX | #B573EC |
| RGB | rgb(181, 115, 236) |
| HSL | hsl(273, 76%, 69%) |
| OKLCH | oklch(67.5% 0.181 307.4) |
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 #B573EC | 3.16:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #B573EC | 6.62:1 | AA | Lc 45.6 | Large or bold text, headings |
| #B573EC text on white | 3.16:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #B573EC text on black | 6.62:1 | AA | Lc -43.2 | 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 400.
-
Step 50
50
#F8F3FE
oklch(97.1% 0.015 306.4)
-
Step 100
100
#F0E5FB
oklch(93.7% 0.032 308.1)
-
Step 200
200
#E4CFFA
oklch(88.5% 0.062 307.2)
-
Step 300
300
#D4ADFA
oklch(80.9% 0.114 307.2)
-
Step 400
400 (this color)
#B573EC
oklch(67.5% 0.181 307.4)
-
Step 500
500
#AF54F3
oklch(63.1% 0.231 307.3)
-
Step 600
600
#9B2DE2
oklch(55.6% 0.252 307.2)
-
Step 700
700
#851BC4
oklch(49.1% 0.234 307.5)
-
Step 800
800
#6C1C9E
oklch(42.7% 0.194 307.6)
-
Step 900
900
#57207E
oklch(37.6% 0.152 307.2)
-
Step 950
950
#33154A
oklch(27% 0.096 307.1)
#B573EC 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) | #4F8EF0 | 0.144 |
| Deuteranopia (no green cones) | #6391E9 | 0.130 |
| Tritanopia (no blue cones) | #AD88A5 | 0.130 |
| Achromatopsia (no color) | #919191 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B573EC
#B573EC
oklch(67.5% 0.181 307.4)
- #78A900
#78A900
oklch(67.4% 0.175 127.5)
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 #B573EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.019
- Light Purple #BF77F6 ΔE 0.024
- Easter Purple #C071FE ΔE 0.033
- Bright Lavender #C760FF ΔE 0.056
- Bright Lilac #C95EFB ΔE 0.057
- Medium Purple #9370DB ΔE 0.062
- Lighter Purple #A55AF4 ΔE 0.065
- Medium Orchid #BA55D3 ΔE 0.067
Use #B573EC 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.