#377CCD#377CCD

#377CCD is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.2% C 0.143 H 254.4°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#377CCD
RGB	rgb(55, 124, 205)
HSL	hsl(212, 60%, 51%)
HSV	hsv(212, 73%, 80%)
CMYK	cmyk(73.2%, 39.5%, 0%, 19.6%)
CIE-LAB	lab(51.42, 5.79, -48.17)
CIE-LCH	lch(51.42, 48.52, 276.85°)
OKLab	oklab(58.24% -0.0384 -0.1374)
OKLCH	oklch(58.24% 0.143 254.4)
XYZ	xyz(19.7986, 19.6331, 60.4919)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377CCD #CD8837

analogous

#37C7CD #377CCD #3D37CD

triadic

#377CCD #CD377C #7CCD37

tetradic

#377CCD #CD37C7 #CD8837 #37CD3D

square

#377CCD #CD37C7 #CD8837 #37CD3D

split-complementary

#377CCD #CD3D37 #C7CD37

monochromatic

#1C416E #285F9F #377CCD #689CD9 #99BCE5

Accessibility & contrast

On white

4.26

#377CCD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#377CCD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CCD

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377CCD	#FFFFFF	#000000	##000000
##377CCD	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5682D0

Deuteranopia (green-blind)

#3E74CB

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377ccd;
/* rgb */ color: rgb(55, 124, 205);
/* oklch */ color: oklch(58.2% 0.143 254.4);

Tailwind

colors: {
  custom: {
    50: '#81a1dd',
    500: '#377ccd',
    950: '#000000',
  },
}

SCSS

$custom: #377ccd;
$custom-light: #81a1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#377ccd",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 205
  },
  "hsl": {
    "h": 212.4,
    "s": 60,
    "l": 50.98
  },
  "oklch": {
    "l": 0.58237,
    "c": 0.14273,
    "h": 254.4
  },
  "luminance": 0.19635
}

Semantic roles & 50–950 ramp

primary

#377CCD

secondary

#D1B38F

accent

#9A45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #377CCD

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

Preview Lab → · Contrast checker → · Palette generator →