#377CB4#377CB4

#377CB4 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.111 H 246.1°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#377CB4
RGB	rgb(55, 124, 180)
HSL	hsl(207, 53%, 46%)
HSV	hsv(207, 69%, 71%)
CMYK	cmyk(69.4%, 31.1%, 0%, 29.4%)
CIE-LAB	lab(50.12, -3.19, -35.90)
CIE-LCH	lch(50.12, 36.04, 264.92°)
OKLab	oklab(56.8% -0.0451 -0.1016)
OKLCH	oklch(56.8% 0.111 246.1)
XYZ	xyz(17.0183, 18.5210, 45.8492)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CB4 #B46F37

analogous

#37B4AD #377CB4 #373DB4

triadic

#377CB4 #B4377C #7CB437

tetradic

#377CB4 #AD37B4 #B46F37 #3DB437

square

#377CB4 #AD37B4 #B46F37 #3DB437

split-complementary

#377CB4 #B4373D #B4AD37

monochromatic

#1A3B56 #295C85 #377CB4 #5B9ACD #8AB7DB

Accessibility & contrast

On white

4.46

#377CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#377CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CB4

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CB4	#FFFFFF	#000000	##000000
##377CB4	1.00	4.46	4.70	4.70
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637EB6

Deuteranopia (green-blind)

#5272B3

Tritanopia (blue-blind)

#008990

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377cb4;
/* rgb */ color: rgb(55, 124, 180);
/* oklch */ color: oklch(56.8% 0.111 246.1);

Tailwind

colors: {
  custom: {
    50: '#7ca1ca',
    500: '#377cb4',
    950: '#000000',
  },
}

SCSS

$custom: #377cb4;
$custom-light: #7ca1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#377cb4",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 180
  },
  "hsl": {
    "h": 206.88,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56796,
    "c": 0.11114,
    "h": 246.1
  },
  "luminance": 0.18523
}

Semantic roles & 50–950 ramp

primary

#377CB4

secondary

#C6A081

accent

#8C4BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #377CB4

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

Preview Lab → · Contrast checker → · Palette generator →