#377CBE#377CBE

#377CBE is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.124 H 250.0°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#377CBE
RGB	rgb(55, 124, 190)
HSL	hsl(209, 55%, 48%)
HSV	hsv(209, 71%, 75%)
CMYK	cmyk(71.1%, 34.7%, 0%, 25.5%)
CIE-LAB	lab(50.62, 0.37, -40.87)
CIE-LCH	lch(50.62, 40.87, 270.51°)
OKLab	oklab(57.35% -0.0422 -0.1161)
OKLCH	oklch(57.35% 0.124 250)
XYZ	xyz(18.0740, 18.9433, 51.4091)
Luminance	0.1895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CBE #BE7937

analogous

#37BEBC #377CBE #3739BE

triadic

#377CBE #BE377C #7CBE37

tetradic

#377CBE #BC37BE #BE7937 #39BE37

square

#377CBE #BC37BE #BE7937 #39BE37

split-complementary

#377CBE #BE3739 #BEBC37

monochromatic

#1C3E5F #295D8F #377CBE #619AD1 #90B9DF

Accessibility & contrast

On white

4.39

#377CBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#377CBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CBE

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CBE	#FFFFFF	#000000	##000000
##377CBE	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7FC1

Deuteranopia (green-blind)

#4B73BD

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377cbe;
/* rgb */ color: rgb(55, 124, 190);
/* oklch */ color: oklch(57.4% 0.124 250.0);

Tailwind

colors: {
  custom: {
    50: '#7ea1d2',
    500: '#377cbe',
    950: '#000000',
  },
}

SCSS

$custom: #377cbe;
$custom-light: #7ea1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#377cbe",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 190
  },
  "hsl": {
    "h": 209.333,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.57351,
    "c": 0.12351,
    "h": 250
  },
  "luminance": 0.18945
}

Semantic roles & 50–950 ramp

primary

#377CBE

secondary

#CAA887

accent

#9249DE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #377CBE

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

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