#603FAA
Closest named color: Rebecca Purple (#663399). oklch(46.4% 0.163 293.2), rgb(96, 63, 170).
Aa
White text reads best on this color (7.53:1).
About this color
#603FAA is a medium-dark, vivid purple. In OKLCH its lightness is 46%, its chroma 0.163 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.037 away. White text reads best on it, at 7.53:1.
| Hue family | Purples |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.163) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #603FAA |
| RGB | rgb(96, 63, 170) |
| HSL | hsl(259, 46%, 46%) |
| OKLCH | oklch(46.4% 0.163 293.2) |
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 #603FAA | 7.53:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #603FAA | 2.78:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #603FAA text on white | 7.53:1 | AAA | Lc 85.7 | Fine for body text |
| #603FAA text on black | 2.78:1 | Fails | Lc -16.3 | 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 700.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C2B8F0
oklch(81% 0.079 292.7)
-
Step 400
400
#A491E8
oklch(70.8% 0.126 292.9)
-
Step 500
500
#8F72E1
oklch(63% 0.162 293.2)
-
Step 600
600
#7A58CF
oklch(55.6% 0.176 292.9)
-
Step 700
700 (this color)
#603FAA
oklch(46.4% 0.163 293.2)
-
Step 800
800
#543B91
oklch(42.7% 0.136 293.2)
-
Step 900
900
#453473
oklch(37.7% 0.104 293.2)
-
Step 950
950
#281F44
oklch(27% 0.067 292.5)
#603FAA 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) | #0056AD | 0.103 |
| Deuteranopia (no green cones) | #0052A8 | 0.102 |
| Tritanopia (no blue cones) | #4B576E | 0.130 |
| Achromatopsia (no color) | #545454 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603FAA
#603FAA
oklch(46.4% 0.163 293.2)
- #5A5F00
#5A5F00
oklch(46.5% 0.104 113.3)
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 #603FAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.037
- Bluey Purple #6241C7 ΔE 0.046
- Blue With A Hint Of Purple #533CC6 ΔE 0.051
- Blueberry #464196 ΔE 0.054
- Blurple #5539CC ΔE 0.059
- Dark Slate Blue #483D8B ΔE 0.065
- Iris #6258C4 ΔE 0.069
- Twilight #4E518B ΔE 0.076
Use #603FAA 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.