#603BB7
Closest named color: Bluey Purple (#6241C7). oklch(46.8% 0.185 291.3), rgb(96, 59, 183).
Aa
White text reads best on this color (7.48:1).
About this color
#603BB7 is a medium-dark, vivid purple. In OKLCH its lightness is 47%, its chroma 0.185 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.028 away. White text reads best on it, at 7.48:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 2.80:1 |
| White text | 7.48:1 |
Values
| HEX | #603BB7 |
| RGB | rgb(96, 59, 183) |
| HSL | hsl(258, 51%, 47%) |
| OKLCH | oklch(46.8% 0.185 291.3) |
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 #603BB7 | 7.48:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #603BB7 | 2.80:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #603BB7 text on white | 7.48:1 | AAA | Lc 85.4 | Fine for body text |
| #603BB7 text on black | 2.80:1 | Fails | Lc -16.6 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B7F6
oklch(81% 0.088 291.6)
-
Step 400
400
#A28FF2
oklch(70.8% 0.142 291.1)
-
Step 500
500
#8D6FED
oklch(63.1% 0.182 291.2)
-
Step 600
600
#7953DC
oklch(55.6% 0.199 291.3)
-
Step 700
700 (this color)
#603BB7
oklch(46.8% 0.185 291.3)
-
Step 800
800
#53389A
oklch(42.8% 0.152 291.3)
-
Step 900
900
#44317B
oklch(37.6% 0.12 291.4)
-
Step 950
950
#281E48
oklch(27.1% 0.075 291.5)
#603BB7 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) | #0057BB | 0.105 |
| Deuteranopia (no green cones) | #0052B5 | 0.103 |
| Tritanopia (no blue cones) | #455A74 | 0.148 |
| Achromatopsia (no color) | #555555 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603BB7
#603BB7
oklch(46.8% 0.185 291.3)
- #5D5F00
#5D5F00
oklch(46.8% 0.103 111.2)
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 #603BB7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.028
- Blue With A Hint Of Purple #533CC6 ΔE 0.033
- Blurple #5539CC ΔE 0.039
- Rebecca Purple #663399 ΔE 0.052
- Purple Blue #5D21D0 ΔE 0.054
- Majorelle Blue #3F37C9 ΔE 0.064
- Grape #7209B7 ΔE 0.067
- Iris #6258C4 ΔE 0.067
Use #603BB7 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.