#B573EB
Closest named color: Light Urple (#B36FF6). oklch(67.5% 0.18 307.7), rgb(181, 115, 235).
Aa
Black text reads best on this color (6.61:1).
About this color
#B573EB is a medium-light, vivid purple. In OKLCH its lightness is 67%, its chroma 0.180 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.020 away. Black text reads best on it, at 6.61:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.180) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.61:1 |
| White text | 3.17:1 |
Values
| HEX | #B573EB |
| RGB | rgb(181, 115, 235) |
| HSL | hsl(273, 75%, 69%) |
| OKLCH | oklch(67.5% 0.18 307.7) |
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 #B573EB | 3.17:1 | AA large text | Lc -64.0 | Content text, not long reading |
| Black text on #B573EB | 6.61:1 | AA | Lc 45.5 | Large or bold text, headings |
| #B573EB text on white | 3.17:1 | AA large text | Lc 58.6 | Large or bold text, headings |
| #B573EB text on black | 6.61:1 | 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
#D4ADF9
oklch(80.9% 0.112 307.5)
-
Step 400
400 (this color)
#B573EB
oklch(67.5% 0.18 307.7)
-
Step 500
500
#B054F2
oklch(63.1% 0.231 307.8)
-
Step 600
600
#9B2EE1
oklch(55.6% 0.25 307.4)
-
Step 700
700
#851CC3
oklch(49.1% 0.233 307.7)
-
Step 800
800
#6C1C9E
oklch(42.7% 0.194 307.6)
-
Step 900
900
#57217D
oklch(37.7% 0.149 307.5)
-
Step 950
950
#331549
oklch(26.9% 0.095 307.8)
#B573EB 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) | #508EEF | 0.143 |
| Deuteranopia (no green cones) | #6491E8 | 0.129 |
| Tritanopia (no blue cones) | #AD88A4 | 0.131 |
| Achromatopsia (no color) | #909090 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B573EB
#B573EB
oklch(67.5% 0.18 307.7)
- #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 #B573EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.020
- Light Purple #BF77F6 ΔE 0.025
- Easter Purple #C071FE ΔE 0.034
- Bright Lavender #C760FF ΔE 0.057
- Bright Lilac #C95EFB ΔE 0.058
- Medium Purple #9370DB ΔE 0.062
- Lighter Purple #A55AF4 ΔE 0.065
- Medium Orchid #BA55D3 ΔE 0.066
Use #B573EB 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.