#3779B2#3779B2

#3779B2 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 56.0% C 0.111 H 247.5°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#3779B2
RGB	rgb(55, 121, 178)
HSL	hsl(208, 53%, 46%)
HSV	hsv(208, 69%, 70%)
CMYK	cmyk(69.1%, 32%, 0%, 30.2%)
CIE-LAB	lab(49.13, -2.11, -36.31)
CIE-LCH	lch(49.13, 36.37, 266.67°)
OKLab	oklab(55.98% -0.0427 -0.1028)
OKLCH	oklch(55.98% 0.111 247.5)
XYZ	xyz(16.4458, 17.6996, 44.6605)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779B2 #B27037

analogous

#37B2AD #3779B2 #373BB2

triadic

#3779B2 #B23779 #79B237

tetradic

#3779B2 #AD37B2 #B27037 #3BB237

square

#3779B2 #AD37B2 #B27037 #3BB237

split-complementary

#3779B2 #B2373B #B2AD37

monochromatic

#1A3954 #295983 #3779B2 #5A97CC #89B5DB

Accessibility & contrast

On white

4.63

#3779B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3779B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3779B2

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779B2	#FFFFFF	#000000	##FFFFFF
##3779B2	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607BB4

Deuteranopia (green-blind)

#4E6FB1

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3779b2;
/* rgb */ color: rgb(55, 121, 178);
/* oklch */ color: oklch(56.0% 0.111 247.5);

Tailwind

colors: {
  custom: {
    50: '#7c9fc9',
    500: '#3779b2',
    950: '#000000',
  },
}

SCSS

$custom: #3779b2;
$custom-light: #7c9fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3779b2",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 178
  },
  "hsl": {
    "h": 207.805,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55982,
    "c": 0.11129,
    "h": 247.5
  },
  "luminance": 0.17701
}

Semantic roles & 50–950 ramp

primary

#3779B2

secondary

#C5A080

accent

#8F4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3779B2

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

Preview Lab → · Contrast checker → · Palette generator →