#3550C7#3550C7

#3550C7 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.6% C 0.187 H 268.6°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3550C7
RGB	rgb(53, 80, 199)
HSL	hsl(229, 58%, 49%)
HSV	hsv(229, 73%, 78%)
CMYK	cmyk(73.4%, 59.8%, 0%, 22%)
CIE-LAB	lab(38.93, 31.28, -64.87)
CIE-LCH	lch(38.93, 72.02, 295.75°)
OKLab	oklab(48.55% -0.0047 -0.1873)
OKLCH	oklch(48.55% 0.187 268.6)
XYZ	xyz(14.6421, 10.6162, 55.2992)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3550C7 #C7AC35

analogous

#3599C7 #3550C7 #6335C7

triadic

#3550C7 #C73550 #50C735

tetradic

#3550C7 #C73599 #C7AC35 #35C763

square

#3550C7 #C73599 #C7AC35 #35C763

split-complementary

#3550C7 #C76335 #99C735

monochromatic

#1B2966 #283D97 #3550C7 #6479D6 #94A2E2

Accessibility & contrast

On white

6.72

#3550C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3550C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3550C7

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3550C7	#FFFFFF	#000000	##FFFFFF
##3550C7	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CB

Deuteranopia (green-blind)

#0055C5

Tritanopia (blue-blind)

#006E84

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3550c7;
/* rgb */ color: rgb(53, 80, 199);
/* oklch */ color: oklch(48.6% 0.187 268.6);

Tailwind

colors: {
  custom: {
    50: '#8180d9',
    500: '#3550c7',
    950: '#000000',
  },
}

SCSS

$custom: #3550c7;
$custom-light: #8180d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3550c7",
  "rgb": {
    "r": 53,
    "g": 80,
    "b": 199
  },
  "hsl": {
    "h": 228.904,
    "s": 57.937,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48552,
    "c": 0.18735,
    "h": 268.6
  },
  "luminance": 0.10618
}

Semantic roles & 50–950 ramp

primary

#3550C7

secondary

#CEC18A

accent

#C547E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3550C7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →