#604F9D
Closest named color: Twilight (#4E518B). oklch(48.3% 0.122 291.2), rgb(96, 79, 157).
Aa
White text reads best on this color (6.76:1).
About this color
#604F9D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 48%, its chroma 0.122 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.042 away. White text reads best on it, at 6.76:1.
| Hue family | Purples |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.10:1 |
| White text | 6.76:1 |
Values
| HEX | #604F9D |
| RGB | rgb(96, 79, 157) |
| HSL | hsl(253, 33%, 46%) |
| OKLCH | oklch(48.3% 0.122 291.2) |
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 #604F9D | 6.76:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #604F9D | 3.10:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #604F9D text on white | 6.76:1 | AA | Lc 83.2 | Fine for body text |
| #604F9D text on black | 3.10:1 | AA large text | Lc -18.8 | 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
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D9D6EE
oklch(88.6% 0.033 291.5)
-
Step 300
300
#C0BBE5
oklch(81% 0.059 290.5)
-
Step 400
400
#A196D7
oklch(70.7% 0.094 291.6)
-
Step 500
500
#8A7BCC
oklch(63% 0.12 291.1)
-
Step 600
600
#7563B9
oklch(55.6% 0.13 291.2)
-
Step 700
700 (this color)
#604F9D
oklch(48.3% 0.122 291.2)
-
Step 800
800
#504381
oklch(42.7% 0.1 291.2)
-
Step 900
900
#423968
oklch(37.7% 0.079 290.9)
-
Step 950
950
#27223D
oklch(27.1% 0.049 291.2)
#604F9D 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) | #315DA0 | 0.068 |
| Deuteranopia (no green cones) | #335A9B | 0.065 |
| Tritanopia (no blue cones) | #505F6E | 0.102 |
| Achromatopsia (no color) | #5B5B5B | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #604F9D
#604F9D
oklch(48.3% 0.122 291.2)
- #616300
#616300
oklch(48.2% 0.106 111.2)
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 #604F9D, closest first.
No curated palette has a color within ΔE 0.04 of #604F9D.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.042
- Dusk #4E5481 ΔE 0.058
- Dusky Blue #475F94 ΔE 0.058
- Blueberry #464196 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.063
- Iris #6258C4 ΔE 0.063
- Rebecca Purple #663399 ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.069
Use #604F9D 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.