#3777BE#3777BE

#3777BE is a mid, vivid cyan. Relative luminance 0.177; OKLCH L 56.2% C 0.128 H 253.1°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3777BE
RGB	rgb(55, 119, 190)
HSL	hsl(212, 55%, 48%)
HSV	hsv(212, 71%, 75%)
CMYK	cmyk(71.1%, 37.4%, 0%, 25.5%)
CIE-LAB	lab(49.16, 3.40, -43.19)
CIE-LCH	lch(49.16, 43.32, 274.50°)
OKLab	oklab(56.21% -0.0374 -0.1229)
OKLCH	oklch(56.21% 0.128 253.1)
XYZ	xyz(17.4632, 17.7217, 51.2055)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3777BE #BE7E37

analogous

#37BABE #3777BE #3B37BE

triadic

#3777BE #BE3777 #77BE37

tetradic

#3777BE #BE37BA #BE7E37 #37BE3B

square

#3777BE #BE37BA #BE7E37 #37BE3B

split-complementary

#3777BE #BE3B37 #BABE37

monochromatic

#1C3C5F #29598F #3777BE #6196D1 #90B6DF

Accessibility & contrast

On white

4.62

#3777BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#3777BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3777BE

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3777BE	#FFFFFF	#000000	##FFFFFF
##3777BE	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577CC1

Deuteranopia (green-blind)

#436FBD

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3777be;
/* rgb */ color: rgb(55, 119, 190);
/* oklch */ color: oklch(56.2% 0.128 253.1);

Tailwind

colors: {
  custom: {
    50: '#7e9dd2',
    500: '#3777be',
    950: '#000000',
  },
}

SCSS

$custom: #3777be;
$custom-light: #7e9dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3777be",
  "rgb": {
    "r": 55,
    "g": 119,
    "b": 190
  },
  "hsl": {
    "h": 211.556,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.56205,
    "c": 0.12848,
    "h": 253.1
  },
  "luminance": 0.17724
}

Semantic roles & 50–950 ramp

primary

#3777BE

secondary

#CAAA87

accent

#9849DE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3777BE

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

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