#B173EE
Closest named color: Light Urple (#B36FF6). oklch(67.2% 0.183 305.3), rgb(177, 115, 238).
Aa
Black text reads best on this color (6.55:1).
About this color
#B173EE is a medium-light, vivid purple. In OKLCH its lightness is 67%, its chroma 0.183 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Urple (#B36FF6), ΔE 0.016 away. Black text reads best on it, at 6.55:1.
| Hue family | Purples |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Light Urple (#B36FF6) |
| Black text | 6.55:1 |
| White text | 3.20:1 |
Values
| HEX | #B173EE |
| RGB | rgb(177, 115, 238) |
| HSL | hsl(270, 78%, 69%) |
| OKLCH | oklch(67.2% 0.183 305.3) |
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 #B173EE | 3.20:1 | AA large text | Lc -64.3 | Content text, not long reading |
| Black text on #B173EE | 6.55:1 | AA | Lc 45.1 | Large or bold text, headings |
| #B173EE text on white | 3.20:1 | AA large text | Lc 58.9 | Large or bold text, headings |
| #B173EE text on black | 6.55:1 | AA | Lc -42.8 | 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
#EFE5FC
oklch(93.7% 0.032 305.3)
-
Step 200
200
#E3CFFB
oklch(88.5% 0.063 305.7)
-
Step 300
300
#D2AEFC
oklch(81% 0.114 305.1)
-
Step 400
400 (this color)
#B173EE
oklch(67.2% 0.183 305.3)
-
Step 500
500
#AC55F7
oklch(63.1% 0.233 305.3)
-
Step 600
600
#982EE6
oklch(55.6% 0.254 305.2)
-
Step 700
700
#821CC8
oklch(49.2% 0.236 305.3)
-
Step 800
800
#691DA1
oklch(42.6% 0.195 305.2)
-
Step 900
900
#552180
oklch(37.6% 0.152 305.1)
-
Step 950
950
#32154B
oklch(27% 0.097 305.5)
#B173EE 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) | #4C8EF2 | 0.140 |
| Deuteranopia (no green cones) | #5F90EB | 0.127 |
| Tritanopia (no blue cones) | #A789A6 | 0.134 |
| Achromatopsia (no color) | #909090 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B173EE
#B173EE
oklch(67.2% 0.183 305.3)
- #7EA700
#7EA700
oklch(67.3% 0.17 125.3)
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 #B173EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Urple #B36FF6 ΔE 0.016
- Light Purple #BF77F6 ΔE 0.028
- Easter Purple #C071FE ΔE 0.034
- Bright Lavender #C760FF ΔE 0.058
- Medium Purple #9370DB ΔE 0.058
- Bright Lilac #C95EFB ΔE 0.059
- Lighter Purple #A55AF4 ΔE 0.060
- Periwinkle #8E82FE ΔE 0.064
Use #B173EE 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.