#905CB9
Closest named color: Deep Lavender (#8D5EB7). oklch(57.1% 0.147 308.2), rgb(144, 92, 185).
Aa
White text reads best on this color (4.75:1).
About this color
#905CB9 is a medium-dark, vivid purple. In OKLCH its lightness is 57%, its chroma 0.147 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Lavender (#8D5EB7), ΔE 0.008 away. White text reads best on it, at 4.75:1.
| Hue family | Purples |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Deep Lavender (#8D5EB7) |
| Black text | 4.41:1 |
| White text | 4.75:1 |
Values
| HEX | #905CB9 |
| RGB | rgb(144, 92, 185) |
| HSL | hsl(274, 40%, 54%) |
| OKLCH | oklch(57.1% 0.147 308.2) |
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 #905CB9 | 4.75:1 | AA | Lc -78.2 | Fine for body text |
| Black text on #905CB9 | 4.41:1 | AA large text | Lc 31.3 | Non-text elements, placeholder text |
| #905CB9 text on white | 4.75:1 | AA | Lc 72.7 | Content text, not long reading |
| #905CB9 text on black | 4.41:1 | AA large text | Lc -28.9 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F4
oklch(93.6% 0.018 306.7)
-
Step 200
200
#E0D3EC
oklch(88.5% 0.037 308.8)
-
Step 300
300
#CDB6E2
oklch(81% 0.066 308.5)
-
Step 400
400
#B38ED3
oklch(70.6% 0.106 308.4)
-
Step 500
500
#A071C8
oklch(63.1% 0.135 307.9)
-
Step 600
600 (this color)
#905CB9
oklch(57.1% 0.147 308.2)
-
Step 700
700
#76479B
oklch(49% 0.136 308)
-
Step 800
800
#603B7E
oklch(42.7% 0.113 307.8)
-
Step 900
900
#4F3365
oklch(37.7% 0.088 308.6)
-
Step 950
950
#2E1E3B
oklch(26.9% 0.056 308.5)
#905CB9 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) | #4371BC | 0.116 |
| Deuteranopia (no green cones) | #5274B7 | 0.105 |
| Tritanopia (no blue cones) | #8A6C82 | 0.105 |
| Achromatopsia (no color) | #737373 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #905CB9
#905CB9
oklch(57.1% 0.147 308.2)
- #5E870A
#5E870A
oklch(57.2% 0.146 128.1)
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 #905CB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Lavender #8D5EB7 ΔE 0.008
- Amethyst #9B5FC0 ΔE 0.023
- Deep Lilac #966EBD ΔE 0.046
- Purply #983FB2 ΔE 0.060
- Dark Lilac #9C6DA5 ΔE 0.064
- Medium Purple #9370DB ΔE 0.065
- Soft Purple #A66FB5 ΔE 0.065
- Dark Lavender #856798 ΔE 0.066
Use #905CB9 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.