#604F99
Closest named color: Twilight (#4E518B). oklch(48% 0.116 292), rgb(96, 79, 153).
Aa
White text reads best on this color (6.82:1).
About this color
#604F99 is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.116 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.038 away. White text reads best on it, at 6.82:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.07:1 |
| White text | 6.82:1 |
Values
| HEX | #604F99 |
| RGB | rgb(96, 79, 153) |
| HSL | hsl(254, 32%, 45%) |
| OKLCH | oklch(48% 0.116 292) |
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 #604F99 | 6.82:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #604F99 | 3.07:1 | AA large text | Lc 20.6 | Dividers and decoration only |
| #604F99 text on white | 6.82:1 | AA | Lc 83.4 | Fine for body text |
| #604F99 text on black | 3.07:1 | AA large text | Lc -18.5 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F4
oklch(93.6% 0.016 293.7)
-
Step 200
200
#D9D6ED
oklch(88.5% 0.031 291.7)
-
Step 300
300
#C1BBE3
oklch(81% 0.056 292)
-
Step 400
400
#A196D4
oklch(70.6% 0.09 292.1)
-
Step 500
500
#8B7CC9
oklch(63.2% 0.114 291.7)
-
Step 600
600
#7664B6
oklch(55.7% 0.125 291.9)
-
Step 700
700 (this color)
#604F99
oklch(48% 0.116 292)
-
Step 800
800
#51447F
oklch(42.8% 0.096 292)
-
Step 900
900
#433966
oklch(37.7% 0.076 292.6)
-
Step 950
950
#27223C
oklch(27.1% 0.048 291.7)
#604F99 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) | #345C9C | 0.065 |
| Deuteranopia (no green cones) | #375997 | 0.061 |
| Tritanopia (no blue cones) | #525D6C | 0.095 |
| Achromatopsia (no color) | #5B5B5B | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604F99
#604F99
oklch(48% 0.116 292)
- #606300
#606300
oklch(48.1% 0.106 111.8)
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 #604F99, closest first.
No curated palette has a color within ΔE 0.04 of #604F99.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.038
- Dusk #4E5481 ΔE 0.053
- Dusky Blue #475F94 ΔE 0.056
- Blueberry #464196 ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.061
- Rebecca Purple #663399 ΔE 0.065
- Dark Slate Blue #483D8B ΔE 0.067
- Iris #6258C4 ΔE 0.069
Use #604F99 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.