#3677CB#3677CB

#3677CB is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 57.0% C 0.146 H 256.1°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3677CB
RGB	rgb(54, 119, 203)
HSL	hsl(214, 59%, 50%)
HSV	hsv(214, 73%, 80%)
CMYK	cmyk(73.4%, 41.4%, 0%, 20.4%)
CIE-LAB	lab(49.84, 8.00, -49.55)
CIE-LCH	lch(49.84, 50.19, 279.17°)
OKLab	oklab(56.96% -0.035 -0.1416)
OKLCH	oklch(56.96% 0.146 256.1)
XYZ	xyz(18.8937, 18.2876, 59.0224)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677CB #CB8A36

analogous

#36C1CB #3677CB #4036CB

triadic

#3677CB #CB3677 #77CB36

tetradic

#3677CB #CB36C1 #CB8A36 #36CB40

square

#3677CB #CB36C1 #CB8A36 #36CB40

split-complementary

#3677CB #CB4036 #C1CB36

monochromatic

#1C3E6B #285B9C #3677CB #6798D8 #97B9E4

Accessibility & contrast

On white

4.51

#3677CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3677CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677CB

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677CB	#FFFFFF	#000000	##000000
##3677CB	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7ECE

Deuteranopia (green-blind)

#3570C9

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3677cb;
/* rgb */ color: rgb(54, 119, 203);
/* oklch */ color: oklch(57.0% 0.146 256.1);

Tailwind

colors: {
  custom: {
    50: '#809ddb',
    500: '#3677cb',
    950: '#000000',
  },
}

SCSS

$custom: #3677cb;
$custom-light: #809ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3677cb",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 213.826,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56964,
    "c": 0.14585,
    "h": 256.1
  },
  "luminance": 0.1829
}

Semantic roles & 50–950 ramp

primary

#3677CB

secondary

#D0B38D

accent

#9E46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3677CB

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

Preview Lab → · Contrast checker → · Palette generator →