#3779A9#3779A9

#3779A9 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.5% C 0.100 H 243.1°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3779A9
RGB	rgb(55, 121, 169)
HSL	hsl(205, 51%, 44%)
HSV	hsv(205, 67%, 66%)
CMYK	cmyk(67.5%, 28.4%, 0%, 33.7%)
CIE-LAB	lab(48.70, -5.28, -31.76)
CIE-LCH	lch(48.70, 32.19, 260.56°)
OKLab	oklab(55.5% -0.0455 -0.0896)
OKLCH	oklch(55.5% 0.1 243.1)
XYZ	xyz(15.5716, 17.3499, 40.0566)
Luminance	0.1735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779A9 #A96737

analogous

#37A9A0 #3779A9 #3740A9

triadic

#3779A9 #A93779 #79A937

tetradic

#3779A9 #A037A9 #A96737 #40A937

square

#3779A9 #A037A9 #A96737 #40A937

split-complementary

#3779A9 #A93740 #A9A037

monochromatic

#19374D #28587B #3779A9 #5598C8 #84B4D7

Accessibility & contrast

On white

4.70

#3779A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3779A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3779A9

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779A9	#FFFFFF	#000000	##FFFFFF
##3779A9	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637AAB

Deuteranopia (green-blind)

#546FA8

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3779a9;
/* rgb */ color: rgb(55, 121, 169);
/* oklch */ color: oklch(55.5% 0.100 243.1);

Tailwind

colors: {
  custom: {
    50: '#7a9fc2',
    500: '#3779a9',
    950: '#000000',
  },
}

SCSS

$custom: #3779a9;
$custom-light: #7a9fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#3779a9",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 169
  },
  "hsl": {
    "h": 205.263,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.555,
    "c": 0.10044,
    "h": 243.1
  },
  "luminance": 0.17352
}

Semantic roles & 50–950 ramp

primary

#3779A9

secondary

#C0987B

accent

#894DDA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3779A9

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

Preview Lab → · Contrast checker → · Palette generator →