#377FC7#377FC7

#377FC7 is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.6% C 0.132 H 251.1°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#377FC7
RGB	rgb(55, 127, 199)
HSL	hsl(210, 57%, 50%)
HSV	hsv(210, 72%, 78%)
CMYK	cmyk(72.4%, 36.2%, 0%, 22%)
CIE-LAB	lab(51.96, 1.80, -43.89)
CIE-LCH	lch(51.96, 43.93, 272.34°)
OKLab	oklab(58.56% -0.0427 -0.1249)
OKLCH	oklch(58.56% 0.132 251.1)
XYZ	xyz(19.4699, 20.1123, 56.8777)
Luminance	0.2011 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FC7 #C77F37

analogous

#37C7C7 #377FC7 #3737C7

triadic

#377FC7 #C7377F #7FC737

tetradic

#377FC7 #C737C7 #C77F37 #37C737

square

#377FC7 #C737C7 #C77F37 #37C737

split-complementary

#377FC7 #C73737 #C7C737

monochromatic

#1C4267 #2A6097 #377FC7 #669ED5 #96BCE2

Accessibility & contrast

On white

4.18

#377FC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#377FC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FC7

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FC7	#FFFFFF	#000000	##000000
##377FC7	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E83CA

Deuteranopia (green-blind)

#4976C6

Tritanopia (blue-blind)

#009099

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #377fc7;
/* rgb */ color: rgb(55, 127, 199);
/* oklch */ color: oklch(58.6% 0.132 251.1);

Tailwind

colors: {
  custom: {
    50: '#80a3d8',
    500: '#377fc7',
    950: '#000000',
  },
}

SCSS

$custom: #377fc7;
$custom-light: #80a3d8;
$custom-dark: #000000;

JSON

{
  "hex": "#377fc7",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 199
  },
  "hsl": {
    "h": 210,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.58557,
    "c": 0.13196,
    "h": 251.1
  },
  "luminance": 0.20114
}

Semantic roles & 50–950 ramp

primary

#377FC7

secondary

#CDAD8C

accent

#9448E0

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #377FC7

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

Preview Lab → · Contrast checker → · Palette generator →