#3777BA#3777BA

#3777BA is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.123 H 251.8°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3777BA
RGB	rgb(55, 119, 186)
HSL	hsl(211, 54%, 47%)
HSV	hsv(211, 70%, 73%)
CMYK	cmyk(70.4%, 36%, 0%, 27.1%)
CIE-LAB	lab(48.94, 1.96, -41.22)
CIE-LCH	lch(48.94, 41.27, 272.72°)
OKLab	oklab(55.97% -0.0384 -0.1172)
OKLCH	oklch(55.97% 0.123 251.8)
XYZ	xyz(17.0320, 17.5492, 48.9346)
Luminance	0.1755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777BA #BA7A37

analogous

#37B9BA #3777BA #3837BA

triadic

#3777BA #BA3777 #77BA37

tetradic

#3777BA #BA37B9 #BA7A37 #37BA38

square

#3777BA #BA37B9 #BA7A37 #37BA38

split-complementary

#3777BA #BA3837 #B9BA37

monochromatic

#1B3B5C #29598B #3777BA #5F96D0 #8EB5DE

Accessibility & contrast

On white

4.66

#3777BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3777BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3777BA

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777BA	#FFFFFF	#000000	##FFFFFF
##3777BA	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBD

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3777ba;
/* rgb */ color: rgb(55, 119, 186);
/* oklch */ color: oklch(56.0% 0.123 251.8);

Tailwind

colors: {
  custom: {
    50: '#7d9dcf',
    500: '#3777ba',
    950: '#000000',
  },
}

SCSS

$custom: #3777ba;
$custom-light: #7d9dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3777ba",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 186
  },
  "hsl": {
    "h": 210.687,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5597,
    "c": 0.1233,
    "h": 251.8
  },
  "luminance": 0.17551
}

Semantic roles & 50–950 ramp

primary

#3777BA

secondary

#C8A785

accent

#964ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3777BA

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

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