#603DCB
Closest named color: Bluey Purple (#6241C7). oklch(48.8% 0.206 287.5), rgb(96, 61, 203).
Aa
White text reads best on this color (6.93:1).
About this color
#603DCB is a medium-dark, vivid purple. In OKLCH its lightness is 49%, its chroma 0.206 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Purple (#6241C7), ΔE 0.011 away. White text reads best on it, at 6.93:1.
| Hue family | Purples |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.206) |
| Temperature | cool |
| Nearest name | Bluey Purple (#6241C7) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #603DCB |
| RGB | rgb(96, 61, 203) |
| HSL | hsl(255, 58%, 52%) |
| OKLCH | oklch(48.8% 0.206 287.5) |
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 #603DCB | 6.93:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #603DCB | 3.02:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #603DCB text on white | 6.93:1 | AA | Lc 83.3 | Fine for body text |
| #603DCB text on black | 3.02:1 | AA large text | Lc -18.7 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D6D4FD
oklch(88.5% 0.056 287.4)
-
Step 300
300
#BCB7FE
oklch(80.9% 0.1 287.2)
-
Step 400
400
#9C8EFE
oklch(70.7% 0.16 287.3)
-
Step 500
500
#876DFB
oklch(63.2% 0.203 287.5)
-
Step 600
600
#734FEA
oklch(55.6% 0.221 287.6)
-
Step 700
700 (this color)
#603DCB
oklch(48.8% 0.206 287.5)
-
Step 800
800
#4F35A5
oklch(42.8% 0.17 287.6)
-
Step 900
900
#403083
oklch(37.7% 0.133 287)
-
Step 950
950
#251D4D
oklch(27% 0.085 286.9)
#603DCB 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) | #005DCF | 0.102 |
| Deuteranopia (no green cones) | #0056C8 | 0.098 |
| Tritanopia (no blue cones) | #366280 | 0.168 |
| Achromatopsia (no color) | #5A5A5A | 0.207 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #603DCB
#603DCB
oklch(48.8% 0.206 287.5)
- #676300
#676300
oklch(48.8% 0.104 106.9)
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 #603DCB, closest first.
No curated palette has a color within ΔE 0.04 of #603DCB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Purple #6241C7 ΔE 0.011
- Blurple #5539CC ΔE 0.021
- Blue With A Hint Of Purple #533CC6 ΔE 0.024
- Burple #6832E3 ΔE 0.041
- Purple Blue #5D21D0 ΔE 0.042
- Purpley Blue #5F34E7 ΔE 0.045
- Majorelle Blue #3F37C9 ΔE 0.057
- Iris #6258C4 ΔE 0.060
Use #603DCB 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.