#3779BA#3779BA

#3779BA is a mid, vivid cyan. Relative luminance 0.180; OKLCH L 56.4% C 0.121 H 250.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3779BA
RGB	rgb(55, 121, 186)
HSL	hsl(210, 54%, 47%)
HSV	hsv(210, 70%, 73%)
CMYK	cmyk(70.4%, 34.9%, 0%, 27.1%)
CIE-LAB	lab(49.53, 0.74, -40.29)
CIE-LCH	lch(49.53, 40.30, 271.05°)
OKLab	oklab(56.43% -0.0404 -0.1144)
OKLCH	oklch(56.43% 0.121 250.6)
XYZ	xyz(17.2725, 18.0303, 49.0147)
Luminance	0.1803 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779BA #BA7837

analogous

#37BABA #3779BA #3737BA

triadic

#3779BA #BA3779 #79BA37

tetradic

#3779BA #BA37BA #BA7837 #37BA37

square

#3779BA #BA37BA #BA7837 #37BA37

split-complementary

#3779BA #BA3737 #BABA37

monochromatic

#1B3C5C #295A8B #3779BA #5F98D0 #8EB6DE

Accessibility & contrast

On white

4.56

#3779BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3779BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3779BA

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779BA	#FFFFFF	#000000	##000000
##3779BA	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBD

Deuteranopia (green-blind)

#4970B9

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3779ba;
/* rgb */ color: rgb(55, 121, 186);
/* oklch */ color: oklch(56.4% 0.121 250.6);

Tailwind

colors: {
  custom: {
    50: '#7d9fcf',
    500: '#3779ba',
    950: '#000000',
  },
}

SCSS

$custom: #3779ba;
$custom-light: #7d9fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3779ba",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 186
  },
  "hsl": {
    "h": 209.771,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56431,
    "c": 0.12133,
    "h": 250.6
  },
  "luminance": 0.18032
}

Semantic roles & 50–950 ramp

primary

#3779BA

secondary

#C8A685

accent

#934ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3779BA

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

Preview Lab → · Contrast checker → · Palette generator →