#377FC4#377FC4

#377FC4 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.4% C 0.128 H 250.2°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#377FC4
RGB	rgb(55, 127, 196)
HSL	hsl(209, 56%, 49%)
HSV	hsv(209, 72%, 77%)
CMYK	cmyk(71.9%, 35.2%, 0%, 23.1%)
CIE-LAB	lab(51.81, 0.72, -42.43)
CIE-LCH	lch(51.81, 42.44, 270.97°)
OKLab	oklab(58.38% -0.0435 -0.1206)
OKLCH	oklch(58.38% 0.128 250.2)
XYZ	xyz(19.1250, 19.9744, 55.0614)
Luminance	0.1998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FC4 #C47C37

analogous

#37C4C3 #377FC4 #3739C4

triadic

#377FC4 #C4377F #7FC437

tetradic

#377FC4 #C337C4 #C47C37 #39C437

square

#377FC4 #C337C4 #C47C37 #39C437

split-complementary

#377FC4 #C43739 #C4C337

monochromatic

#1C4164 #2A6094 #377FC4 #659DD4 #94BCE1

Accessibility & contrast

On white

4.20

#377FC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#377FC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FC4

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FC4	#FFFFFF	#000000	##000000
##377FC4	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6083C7

Deuteranopia (green-blind)

#4B76C3

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377fc4;
/* rgb */ color: rgb(55, 127, 196);
/* oklch */ color: oklch(58.4% 0.128 250.2);

Tailwind

colors: {
  custom: {
    50: '#7fa3d6',
    500: '#377fc4',
    950: '#000000',
  },
}

SCSS

$custom: #377fc4;
$custom-light: #7fa3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#377fc4",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 196
  },
  "hsl": {
    "h": 209.362,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.58384,
    "c": 0.12817,
    "h": 250.2
  },
  "luminance": 0.19976
}

Semantic roles & 50–950 ramp

primary

#377FC4

secondary

#CCAB8B

accent

#9248DF

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #377FC4

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

Preview Lab → · Contrast checker → · Palette generator →