#3677B0#3677B0

#3677B0 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.4% C 0.111 H 247.8°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3677B0
RGB	rgb(54, 119, 176)
HSL	hsl(208, 53%, 45%)
HSV	hsv(208, 69%, 69%)
CMYK	cmyk(69.3%, 32.4%, 0%, 31%)
CIE-LAB	lab(48.40, -1.78, -36.30)
CIE-LCH	lch(48.40, 36.34, 267.19°)
OKLab	oklab(55.36% -0.0419 -0.1028)
OKLCH	oklch(55.36% 0.111 247.8)
XYZ	xyz(15.9517, 17.1108, 43.5279)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677B0 #B06F36

analogous

#36B0AC #3677B0 #363AB0

triadic

#3677B0 #B03677 #77B036

tetradic

#3677B0 #AC36B0 #B06F36 #3AB036

square

#3677B0 #AC36B0 #B06F36 #3AB036

split-complementary

#3677B0 #B0363A #B0AC36

monochromatic

#193852 #285781 #3677B0 #5895CC #86B3DA

Accessibility & contrast

On white

4.75

#3677B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3677B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3677B0

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677B0	#FFFFFF	#000000	##FFFFFF
##3677B0	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E79B2

Deuteranopia (green-blind)

#4D6EAF

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3677b0;
/* rgb */ color: rgb(54, 119, 176);
/* oklch */ color: oklch(55.4% 0.111 247.8);

Tailwind

colors: {
  custom: {
    50: '#7b9ec8',
    500: '#3677b0',
    950: '#000000',
  },
}

SCSS

$custom: #3677b0;
$custom-light: #7b9ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#3677b0",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 176
  },
  "hsl": {
    "h": 208.033,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.55365,
    "c": 0.111,
    "h": 247.8
  },
  "luminance": 0.17113
}

Semantic roles & 50–950 ramp

primary

#3677B0

secondary

#C49F7E

accent

#8F4BDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3677B0

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

Preview Lab → · Contrast checker → · Palette generator →