#904DB9
Closest named color: Purply (#983FB2). oklch(54.8% 0.171 310.6), rgb(144, 77, 185).
Aa
White text reads best on this color (5.31:1).
About this color
#904DB9 is a medium-dark, vivid purple. In OKLCH its lightness is 55%, its chroma 0.171 and its hue 311°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purply (#983FB2), ΔE 0.030 away. White text reads best on it, at 5.31:1.
| Hue family | Purples |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Purply (#983FB2) |
| Black text | 3.94:1 |
| White text | 5.31:1 |
Values
| HEX | #904DB9 |
| RGB | rgb(144, 77, 185) |
| HSL | hsl(277, 44%, 51%) |
| OKLCH | oklch(54.8% 0.171 310.6) |
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 #904DB9 | 5.31:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #904DB9 | 3.94:1 | AA large text | Lc 28.1 | Dividers and decoration only |
| #904DB9 text on white | 5.31:1 | AA | Lc 76.0 | Fine for body text |
| #904DB9 text on black | 3.94:1 | AA large text | Lc -25.7 | 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
#F8F4FB
oklch(97.2% 0.01 311.2)
-
Step 100
100
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E2D2EF
oklch(88.6% 0.043 310.1)
-
Step 300
300
#D0B3E6
oklch(80.8% 0.077 310.3)
-
Step 400
400
#B98AD9
oklch(70.7% 0.123 310.8)
-
Step 500
500
#A76ACF
oklch(63.1% 0.158 310.5)
-
Step 600
600 (this color)
#904DB9
oklch(54.8% 0.171 310.6)
-
Step 700
700
#7D3FA2
oklch(49.1% 0.16 310.7)
-
Step 800
800
#653583
oklch(42.7% 0.131 310.4)
-
Step 900
900
#532F69
oklch(37.7% 0.103 311.1)
-
Step 950
950
#301C3E
oklch(27% 0.066 309.8)
#904DB9 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) | #2868BC | 0.148 |
| Deuteranopia (no green cones) | #436CB6 | 0.131 |
| Tritanopia (no blue cones) | #8B617C | 0.118 |
| Achromatopsia (no color) | #6B6B6B | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #904DB9
#904DB9
oklch(54.8% 0.171 310.6)
- #528100
#528100
oklch(54.8% 0.148 130.4)
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 #904DB9, closest first.
No curated palette has a color within ΔE 0.04 of #904DB9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purply #983FB2 ΔE 0.030
- Deep Lavender #8D5EB7 ΔE 0.039
- Amethyst #9B5FC0 ΔE 0.047
- Dark Orchid #9932CC ΔE 0.057
- Purpley #8756E4 ΔE 0.069
- Light Indigo #6D5ACF ΔE 0.072
- Slate Blue #6A5ACD ΔE 0.074
- Deep Lilac #966EBD ΔE 0.078
Use #904DB9 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.