#377CBF#377CBF

#377CBF is a mid, vivid cyan. Relative luminance 0.190; OKLCH L 57.4% C 0.125 H 250.3°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#377CBF
RGB	rgb(55, 124, 191)
HSL	hsl(210, 55%, 48%)
HSV	hsv(210, 71%, 75%)
CMYK	cmyk(71.2%, 35.1%, 0%, 25.1%)
CIE-LAB	lab(50.67, 0.72, -41.37)
CIE-LCH	lch(50.67, 41.37, 271.00°)
OKLab	oklab(57.41% -0.042 -0.1175)
OKLCH	oklch(57.41% 0.125 250.3)
XYZ	xyz(18.1836, 18.9871, 51.9867)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CBF #BF7A37

analogous

#37BFBE #377CBF #3738BF

triadic

#377CBF #BF377C #7CBF37

tetradic

#377CBF #BE37BF #BF7A37 #38BF37

square

#377CBF #BE37BF #BF7A37 #38BF37

split-complementary

#377CBF #BF3738 #BFBE37

monochromatic

#1C3E60 #295D8F #377CBF #629AD2 #91B9DF

Accessibility & contrast

On white

4.38

#377CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#377CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CBF

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CBF	#FFFFFF	#000000	##000000
##377CBF	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E80C2

Deuteranopia (green-blind)

#4A73BE

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #377cbf;
/* rgb */ color: rgb(55, 124, 191);
/* oklch */ color: oklch(57.4% 0.125 250.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#377cbf",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 191
  },
  "hsl": {
    "h": 209.559,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57409,
    "c": 0.12478,
    "h": 250.3
  },
  "luminance": 0.18989
}

Semantic roles & 50–950 ramp

primary

#377CBF

secondary

#CAA888

accent

#9349DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #377CBF

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

Preview Lab → · Contrast checker → · Palette generator →