#377FC3#377FC3

#377FC3 is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.3% C 0.127 H 249.8°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#377FC3
RGB	rgb(55, 127, 195)
HSL	hsl(209, 56%, 49%)
HSV	hsv(209, 72%, 76%)
CMYK	cmyk(71.8%, 34.9%, 0%, 23.5%)
CIE-LAB	lab(51.76, 0.36, -41.94)
CIE-LCH	lch(51.76, 41.94, 270.49°)
OKLab	oklab(58.33% -0.0438 -0.1191)
OKLCH	oklch(58.33% 0.127 249.8)
XYZ	xyz(19.0115, 19.9290, 54.4639)
Luminance	0.1993 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FC3 #C37B37

analogous

#37C3C1 #377FC3 #3739C3

triadic

#377FC3 #C3377F #7FC337

tetradic

#377FC3 #C137C3 #C37B37 #39C337

square

#377FC3 #C137C3 #C37B37 #39C337

split-complementary

#377FC3 #C33739 #C3C137

monochromatic

#1C4164 #2A6093 #377FC3 #649DD3 #94BBE1

Accessibility & contrast

On white

4.21

#377FC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#377FC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FC3

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FC3	#FFFFFF	#000000	##000000
##377FC3	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6083C6

Deuteranopia (green-blind)

#4C75C2

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377fc3;
/* rgb */ color: rgb(55, 127, 195);
/* oklch */ color: oklch(58.3% 0.127 249.8);

Tailwind

colors: {
  custom: {
    50: '#7fa3d5',
    500: '#377fc3',
    950: '#000000',
  },
}

SCSS

$custom: #377fc3;
$custom-light: #7fa3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#377fc3",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 195
  },
  "hsl": {
    "h": 209.143,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.58327,
    "c": 0.12692,
    "h": 249.8
  },
  "luminance": 0.19931
}

Semantic roles & 50–950 ramp

primary

#377FC3

secondary

#CCAA8A

accent

#9249DF

background

#F8FAFD

surface

#EFF3FA

border

#CACDD3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #377FC3

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

Preview Lab → · Contrast checker → · Palette generator →