#905BCB
Closest named color: Amethyst (#9B5FC0). oklch(58% 0.17 303.4), rgb(144, 91, 203).
Aa
White text reads best on this color (4.62:1).
About this color
#905BCB is a medium-dark, vivid purple. In OKLCH its lightness is 58%, its chroma 0.170 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.029 away. White text reads best on it, at 4.62:1.
| Hue family | Purples |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.170) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.54:1 |
| White text | 4.62:1 |
Values
| HEX | #905BCB |
| RGB | rgb(144, 91, 203) |
| HSL | hsl(268, 52%, 58%) |
| OKLCH | oklch(58% 0.17 303.4) |
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 #905BCB | 4.62:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #905BCB | 4.54:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #905BCB text on white | 4.62:1 | AA | Lc 71.8 | Content text, not long reading |
| #905BCB text on black | 4.54:1 | AA | Lc -29.9 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CBB5EA
oklch(80.9% 0.077 303.6)
-
Step 400
400
#B08DDF
oklch(70.7% 0.122 303)
-
Step 500
500
#9E6ED6
oklch(63.1% 0.157 303.5)
-
Step 600
600 (this color)
#905BCB
oklch(58% 0.17 303.4)
-
Step 700
700
#7443A8
oklch(49% 0.158 303.4)
-
Step 800
800
#5E3888
oklch(42.6% 0.13 303.2)
-
Step 900
900
#4D316D
oklch(37.6% 0.102 303.4)
-
Step 950
950
#2D1D40
oklch(26.9% 0.065 303.4)
#905BCB 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) | #3174CF | 0.130 |
| Deuteranopia (no green cones) | #4375C8 | 0.118 |
| Tritanopia (no blue cones) | #85718A | 0.128 |
| Achromatopsia (no color) | #757575 | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #905BCB
#905BCB
oklch(58% 0.17 303.4)
- #6A8700
#6A8700
oklch(58% 0.143 123.4)
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 #905BCB, closest first.
No curated palette has a color within ΔE 0.04 of #905BCB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.029
- Deep Lavender #8D5EB7 ΔE 0.033
- Purpley #8756E4 ΔE 0.045
- Medium Purple #9370DB ΔE 0.052
- Deep Lilac #966EBD ΔE 0.056
- Light Indigo #6D5ACF ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.064
- Purply #983FB2 ΔE 0.065
Use #905BCB 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.