#B137C8
Closest named color: Dark Orchid (#9932CC). oklch(57.5% 0.227 320.8), rgb(177, 55, 200).
Aa
White text reads best on this color (4.94:1).
About this color
#B137C8 is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.227 and its hue 321°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Orchid (#9932CC), ΔE 0.050 away. White text reads best on it, at 4.94:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.227) |
| Temperature | in between |
| Nearest name | Dark Orchid (#9932CC) |
| Black text | 4.24:1 |
| White text | 4.94:1 |
Values
| HEX | #B137C8 |
| RGB | rgb(177, 55, 200) |
| HSL | hsl(290, 57%, 50%) |
| OKLCH | oklch(57.5% 0.227 320.8) |
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 #B137C8 | 4.94:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #B137C8 | 4.24:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #B137C8 text on white | 4.94:1 | AA | Lc 73.1 | Content text, not long reading |
| #B137C8 text on black | 4.24:1 | AA large text | Lc -28.6 | Dividers and decoration only |
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 600.
-
Step 50
50
#FAF3FB
oklch(97.2% 0.013 321.9)
-
Step 100
100
#F3E4F6
oklch(93.6% 0.029 320.6)
-
Step 200
200
#EBCEF0
oklch(88.6% 0.055 321.3)
-
Step 300
300
#DFABE9
oklch(80.9% 0.102 320.9)
-
Step 400
400
#CD7BDE
oklch(70.6% 0.163 320.6)
-
Step 500
500
#BF53D5
oklch(63.1% 0.209 320.5)
-
Step 600
600 (this color)
#B137C8
oklch(57.5% 0.227 320.8)
-
Step 700
700
#921FA7
oklch(49% 0.211 320.7)
-
Step 800
800
#771E87
oklch(42.7% 0.174 321)
-
Step 900
900
#60216C
oklch(37.7% 0.135 320.9)
-
Step 950
950
#381540
oklch(27% 0.086 319.8)
#B137C8 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) | #0068CC | 0.227 |
| Deuteranopia (no green cones) | #4774C5 | 0.197 |
| Tritanopia (no blue cones) | #B2537D | 0.138 |
| Achromatopsia (no color) | #707070 | 0.229 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B137C8
#B137C8
oklch(57.5% 0.227 320.8)
- #239200
#239200
oklch(57.6% 0.189 140.8)
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 #B137C8, closest first.
No curated palette has a color within ΔE 0.04 of #B137C8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Orchid #9932CC ΔE 0.050
- Purpley Pink #C83CB9 ΔE 0.055
- Vibrant Purple #AD03DE ΔE 0.056
- Medium Orchid #BA55D3 ΔE 0.056
- Purply #983FB2 ΔE 0.057
- Pinky Purple #C94CBE ΔE 0.067
- Purple Pink #D725DE ΔE 0.077
- Amethyst #9B5FC0 ΔE 0.081
Use #B137C8 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.