#377DC9#377DC9

#377DC9 is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.2% C 0.137 H 252.8°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#377DC9
RGB	rgb(55, 125, 201)
HSL	hsl(211, 57%, 50%)
HSV	hsv(211, 73%, 79%)
CMYK	cmyk(72.6%, 37.8%, 0%, 21.2%)
CIE-LAB	lab(51.49, 3.73, -45.79)
CIE-LCH	lch(51.49, 45.94, 274.66°)
OKLab	oklab(58.22% -0.0403 -0.1304)
OKLCH	oklch(58.22% 0.137 252.8)
XYZ	xyz(19.4479, 19.6943, 58.0234)
Luminance	0.1970 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DC9 #C98337

analogous

#37C6C9 #377DC9 #3A37C9

triadic

#377DC9 #C9377D #7DC937

tetradic

#377DC9 #C937C6 #C98337 #37C93A

square

#377DC9 #C937C6 #C98337 #37C93A

split-complementary

#377DC9 #C93A37 #C6C937

monochromatic

#1C4169 #295F99 #377DC9 #679CD6 #97BCE3

Accessibility & contrast

On white

4.25

#377DC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#377DC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DC9

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DC9	#FFFFFF	#000000	##000000
##377DC9	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A82CC

Deuteranopia (green-blind)

#4475C7

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #377dc9;
/* rgb */ color: rgb(55, 125, 201);
/* oklch */ color: oklch(58.2% 0.137 252.8);

Tailwind

colors: {
  custom: {
    50: '#80a2da',
    500: '#377dc9',
    950: '#000000',
  },
}

SCSS

$custom: #377dc9;
$custom-light: #80a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#377dc9",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 201
  },
  "hsl": {
    "h": 211.233,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.5822,
    "c": 0.13652,
    "h": 252.8
  },
  "luminance": 0.19697
}

Semantic roles & 50–950 ramp

primary

#377DC9

secondary

#CFAF8D

accent

#9747E1

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #377DC9

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

Preview Lab → · Contrast checker → · Palette generator →