#604EB9
Closest named color: Iris (#6258C4). oklch(50% 0.162 286.7), rgb(96, 78, 185).
Aa
White text reads best on this color (6.38:1).
About this color
#604EB9 is a medium-dark, vivid purple. In OKLCH its lightness is 50%, its chroma 0.162 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.029 away. White text reads best on it, at 6.38:1.
| Hue family | Purples |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #604EB9 |
| RGB | rgb(96, 78, 185) |
| HSL | hsl(250, 43%, 52%) |
| OKLCH | oklch(50% 0.162 286.7) |
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 #604EB9 | 6.38:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #604EB9 | 3.28:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #604EB9 text on white | 6.38:1 | AA | Lc 81.4 | Fine for body text |
| #604EB9 text on black | 3.28:1 | AA large text | Lc -20.5 | 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 700.
-
Step 50
50
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D5F5
oklch(88.4% 0.044 286.9)
-
Step 300
300
#BCBAF1
oklch(80.9% 0.077 286.2)
-
Step 400
400
#9B94EB
oklch(70.8% 0.125 286.4)
-
Step 500
500
#8476E4
oklch(63% 0.161 286.7)
-
Step 600
600
#6F5CD2
oklch(55.5% 0.175 286.6)
-
Step 700
700 (this color)
#604EB9
oklch(50% 0.162 286.7)
-
Step 800
800
#4C3E93
oklch(42.6% 0.134 286.8)
-
Step 900
900
#3F3675
oklch(37.7% 0.104 286.8)
-
Step 950
950
#252045
oklch(27% 0.067 287.2)
#604EB9 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) | #0062BD | 0.090 |
| Deuteranopia (no green cones) | #005CB7 | 0.089 |
| Tritanopia (no blue cones) | #42667C | 0.134 |
| Achromatopsia (no color) | #5F5F5F | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604EB9
#604EB9
oklch(50% 0.162 286.7)
- #6B6700
#6B6700
oklch(50.1% 0.107 107)
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 #604EB9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.029
- Bluey Purple #6241C7 ΔE 0.036
- Slate Blue #6A5ACD ΔE 0.045
- Light Indigo #6D5ACF ΔE 0.049
- Blue With A Hint Of Purple #533CC6 ΔE 0.051
- Dark Periwinkle #665FD1 ΔE 0.054
- Blurple #5539CC ΔE 0.058
- Warm Blue #4B57DB ΔE 0.062
Use #604EB9 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.