#3755FD#3755FD

#3755FD is a mid, highly saturated blue. Relative luminance 0.144; OKLCH L 54.3% C 0.249 H 268.2°. Best body text is #FFFFFF at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3755FD
RGB	rgb(55, 85, 253)
HSL	hsl(231, 98%, 60%)
HSV	hsv(231, 78%, 99%)
CMYK	cmyk(78.3%, 66.4%, 0%, 0.8%)
CIE-LAB	lab(44.80, 47.46, -85.95)
CIE-LCH	lch(44.80, 98.18, 298.90°)
OKLab	oklab(54.31% -0.0077 -0.2489)
OKLCH	oklch(54.31% 0.249 268.2)
XYZ	xyz(22.5475, 14.3985, 94.5003)
Luminance	0.1440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755FD #FDDF37

analogous

#37B8FD #3755FD #7C37FD

triadic

#3755FD #FD3755 #55FD37

tetradic

#3755FD #FD37B8 #FDDF37 #37FD7C

square

#3755FD #FD37B8 #FDDF37 #37FD7C

split-complementary

#3755FD #FD7C37 #B8FD37

monochromatic

#021DB8 #0227F4 #3755FD #7489FE #B0BCFE

Accessibility & contrast

On white

5.41

#3755FD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#3755FD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755FD

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755FD	#FFFFFF	#000000	##FFFFFF
##3755FD	1.00	5.41	3.88	5.41
#FFFFFF	5.41	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074FF

Deuteranopia (green-blind)

#0061FA

Tritanopia (blue-blind)

#0083A2

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3755fd;
/* rgb */ color: rgb(55, 85, 253);
/* oklch */ color: oklch(54.3% 0.249 268.2);

Tailwind

colors: {
  custom: {
    50: '#8d85ff',
    500: '#3755fd',
    950: '#000000',
  },
}

SCSS

$custom: #3755fd;
$custom-light: #8d85ff;
$custom-dark: #000000;

JSON

{
  "hex": "#3755fd",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 253
  },
  "hsl": {
    "h": 230.909,
    "s": 98.02,
    "l": 60.392
  },
  "oklch": {
    "l": 0.54308,
    "c": 0.24903,
    "h": 268.2
  },
  "luminance": 0.14401
}

Semantic roles & 50–950 ramp

primary

#3755FD

secondary

#EEE2A2

accent

#C300E6

background

#F9F8FF

surface

#F2EFFF

border

#CCCAD7

text

#0E0B18

muted

#7E7C86

Preview Lab

Preview with #3755FD

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

Preview Lab → · Contrast checker → · Palette generator →