#3755A3#3755A3

#3755A3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.9% C 0.131 H 265.8°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#3755A3
RGB	rgb(55, 85, 163)
HSL	hsl(223, 50%, 43%)
HSV	hsv(223, 66%, 64%)
CMYK	cmyk(66.3%, 47.9%, 0%, 36.1%)
CIE-LAB	lab(37.76, 15.10, -45.56)
CIE-LCH	lch(37.76, 48.00, 288.34°)
OKLab	oklab(46.87% -0.0097 -0.1304)
OKLCH	oklch(46.87% 0.131 265.8)
XYZ	xyz(11.4326, 9.9525, 35.9618)
Luminance	0.0995 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755A3 #A38537

analogous

#378BA3 #3755A3 #4F37A3

triadic

#3755A3 #A33755 #55A337

tetradic

#3755A3 #A3378B #A38537 #37A34F

square

#3755A3 #A3378B #A38537 #37A34F

split-complementary

#3755A3 #A34F37 #8BA337

monochromatic

#182547 #283D75 #3755A3 #5272C5 #8098D4

Accessibility & contrast

On white

7.02

#3755A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#3755A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3755A3

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755A3	#FFFFFF	#000000	##FFFFFF
##3755A3	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5EA6

Deuteranopia (green-blind)

#1754A1

Tritanopia (blue-blind)

#006774

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3755a3;
/* rgb */ color: rgb(55, 85, 163);
/* oklch */ color: oklch(46.9% 0.131 265.8);

Tailwind

colors: {
  custom: {
    50: '#7a84bf',
    500: '#3755a3',
    950: '#000000',
  },
}

SCSS

$custom: #3755a3;
$custom-light: #7a84bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3755a3",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 163
  },
  "hsl": {
    "h": 223.333,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.46873,
    "c": 0.13076,
    "h": 265.8
  },
  "luminance": 0.09954
}

Semantic roles & 50–950 ramp

primary

#3755A3

secondary

#BEAA78

accent

#B34FD9

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3755A3

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

Preview Lab → · Contrast checker → · Palette generator →