#3779B5#3779B5

#3779B5 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.1% C 0.115 H 248.7°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3779B5
RGB	rgb(55, 121, 181)
HSL	hsl(209, 53%, 46%)
HSV	hsv(209, 70%, 71%)
CMYK	cmyk(69.6%, 33.1%, 0%, 29%)
CIE-LAB	lab(49.28, -1.05, -37.81)
CIE-LCH	lch(49.28, 37.82, 268.41°)
OKLab	oklab(56.15% -0.0418 -0.1072)
OKLCH	oklch(56.15% 0.115 248.7)
XYZ	xyz(16.7503, 17.8214, 46.2642)
Luminance	0.1782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779B5 #B57337

analogous

#37B5B2 #3779B5 #373AB5

triadic

#3779B5 #B53779 #79B537

tetradic

#3779B5 #B237B5 #B57337 #3AB537

square

#3779B5 #B237B5 #B57337 #3AB537

split-complementary

#3779B5 #B5373A #B5B237

monochromatic

#1A3A57 #295A86 #3779B5 #5C97CD #8BB5DC

Accessibility & contrast

On white

4.60

#3779B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3779B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3779B5

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779B5	#FFFFFF	#000000	##FFFFFF
##3779B5	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7CB8

Deuteranopia (green-blind)

#4D70B4

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3779b5;
/* rgb */ color: rgb(55, 121, 181);
/* oklch */ color: oklch(56.1% 0.115 248.7);

Tailwind

colors: {
  custom: {
    50: '#7c9fcb',
    500: '#3779b5',
    950: '#000000',
  },
}

SCSS

$custom: #3779b5;
$custom-light: #7c9fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3779b5",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 181
  },
  "hsl": {
    "h": 208.571,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.56148,
    "c": 0.11502,
    "h": 248.7
  },
  "luminance": 0.17823
}

Semantic roles & 50–950 ramp

primary

#3779B5

secondary

#C6A282

accent

#904BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3779B5

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

Preview Lab → · Contrast checker → · Palette generator →