#604FA9
Closest named color: Iris (#6258C4). oklch(49% 0.139 288.9), rgb(96, 79, 169).
Aa
White text reads best on this color (6.58:1).
About this color
#604FA9 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 49%, its chroma 0.139 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.046 away. White text reads best on it, at 6.58:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.18:1 |
| White text | 6.58:1 |
Values
| HEX | #604FA9 |
| RGB | rgb(96, 79, 169) |
| HSL | hsl(251, 36%, 49%) |
| OKLCH | oklch(49% 0.139 288.9) |
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 #604FA9 | 6.58:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #604FA9 | 3.18:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #604FA9 text on white | 6.58:1 | AA | Lc 82.4 | Fine for body text |
| #604FA9 text on black | 3.18:1 | AA large text | Lc -19.5 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F1
oklch(88.6% 0.037 289)
-
Step 300
300
#BEBAEA
oklch(80.8% 0.067 288.6)
-
Step 400
400
#9E95E0
oklch(70.7% 0.108 288.8)
-
Step 500
500
#8879D7
oklch(63.1% 0.138 289.1)
-
Step 600
600
#7260C4
oklch(55.5% 0.15 288.8)
-
Step 700
700 (this color)
#604FA9
oklch(49% 0.139 288.9)
-
Step 800
800
#4E4189
oklch(42.6% 0.115 288.8)
-
Step 900
900
#41386E
oklch(37.8% 0.09 289)
-
Step 950
950
#262140
oklch(27% 0.057 289.5)
#604FA9 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) | #255FAC | 0.076 |
| Deuteranopia (no green cones) | #265BA7 | 0.074 |
| Tritanopia (no blue cones) | #4B6274 | 0.115 |
| Achromatopsia (no color) | #5D5D5D | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604FA9
#604FA9
oklch(49% 0.139 288.9)
- #666500
#666500
oklch(49.1% 0.107 109.1)
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 #604FA9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.046
- Twilight #4E518B ΔE 0.058
- Bluey Purple #6241C7 ΔE 0.058
- Slate Blue #6A5ACD ΔE 0.063
- Blueberry #464196 ΔE 0.065
- Rebecca Purple #663399 ΔE 0.066
- Light Indigo #6D5ACF ΔE 0.067
- Dusky Blue #475F94 ΔE 0.067
Use #604FA9 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.