#904CB5
Closest named color: Purply (#983FB2). oklch(54.4% 0.168 312), rgb(144, 76, 181).
Aa
White text reads best on this color (5.40:1).
About this color
#904CB5 is a medium-dark, vivid purple. In OKLCH its lightness is 54%, its chroma 0.168 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purply (#983FB2), ΔE 0.028 away. White text reads best on it, at 5.40:1.
| Hue family | Purples |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Purply (#983FB2) |
| Black text | 3.88:1 |
| White text | 5.40:1 |
Values
| HEX | #904CB5 |
| RGB | rgb(144, 76, 181) |
| HSL | hsl(279, 42%, 50%) |
| OKLCH | oklch(54.4% 0.168 312) |
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 #904CB5 | 5.40:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #904CB5 | 3.88:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #904CB5 text on white | 5.40:1 | AA | Lc 76.5 | Fine for body text |
| #904CB5 text on black | 3.88:1 | AA large text | Lc -25.3 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F5
oklch(93.6% 0.022 312.2)
-
Step 200
200
#E3D2EE
oklch(88.6% 0.042 312.3)
-
Step 300
300
#D1B3E4
oklch(80.9% 0.075 312.2)
-
Step 400
400
#BA8AD7
oklch(70.8% 0.121 312.1)
-
Step 500
500
#A86ACC
oklch(63% 0.155 311.9)
-
Step 600
600 (this color)
#904CB5
oklch(54.4% 0.168 312)
-
Step 700
700
#7E409F
oklch(49.2% 0.155 312.2)
-
Step 800
800
#663581
oklch(42.6% 0.129 311.9)
-
Step 900
900
#532F68
oklch(37.7% 0.101 311.6)
-
Step 950
950
#311C3D
oklch(27% 0.065 312.1)
#904CB5 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) | #2B67B8 | 0.147 |
| Deuteranopia (no green cones) | #456CB2 | 0.131 |
| Tritanopia (no blue cones) | #8C5F79 | 0.115 |
| Achromatopsia (no color) | #6A6A6A | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #904CB5
#904CB5
oklch(54.4% 0.168 312)
- #4D8100
#4D8100
oklch(54.5% 0.151 132)
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 #904CB5, closest first.
No curated palette has a color within ΔE 0.04 of #904CB5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purply #983FB2 ΔE 0.028
- Deep Lavender #8D5EB7 ΔE 0.040
- Amethyst #9B5FC0 ΔE 0.050
- Dark Orchid #9932CC ΔE 0.060
- Light Indigo #6D5ACF ΔE 0.075
- Purpley #8756E4 ΔE 0.075
- Light Eggplant #894585 ΔE 0.076
- Warm Purple #952E8F ΔE 0.076
Use #904CB5 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.