#377CBD#377CBD

#377CBD is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.122 H 249.7°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#377CBD
RGB	rgb(55, 124, 189)
HSL	hsl(209, 55%, 48%)
HSV	hsv(209, 71%, 74%)
CMYK	cmyk(70.9%, 34.4%, 0%, 25.9%)
CIE-LAB	lab(50.57, 0.01, -40.38)
CIE-LCH	lch(50.57, 40.38, 270.01°)
OKLab	oklab(57.29% -0.0425 -0.1146)
OKLCH	oklch(57.29% 0.122 249.7)
XYZ	xyz(17.9651, 18.8997, 50.8355)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CBD #BD7837

analogous

#37BDBB #377CBD #3739BD

triadic

#377CBD #BD377C #7CBD37

tetradic

#377CBD #BB37BD #BD7837 #39BD37

square

#377CBD #BB37BD #BD7837 #39BD37

split-complementary

#377CBD #BD3739 #BDBB37

monochromatic

#1B3E5E #295D8E #377CBD #609AD1 #90B8DF

Accessibility & contrast

On white

4.39

#377CBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#377CBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CBD

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CBD	#FFFFFF	#000000	##000000
##377CBD	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FC0

Deuteranopia (green-blind)

#4C73BC

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377cbd;
/* rgb */ color: rgb(55, 124, 189);
/* oklch */ color: oklch(57.3% 0.122 249.7);

Tailwind

colors: {
  custom: {
    50: '#7ea1d1',
    500: '#377cbd',
    950: '#000000',
  },
}

SCSS

$custom: #377cbd;
$custom-light: #7ea1d1;
$custom-dark: #000000;

JSON

{
  "hex": "#377cbd",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 189
  },
  "hsl": {
    "h": 209.104,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57295,
    "c": 0.12225,
    "h": 249.7
  },
  "luminance": 0.18902
}

Semantic roles & 50–950 ramp

primary

#377CBD

secondary

#C9A786

accent

#924ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #377CBD

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

Preview Lab → · Contrast checker → · Palette generator →