#377EC2#377EC2

#377EC2 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.0% C 0.127 H 250.1°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#377EC2
RGB	rgb(55, 126, 194)
HSL	hsl(209, 56%, 49%)
HSV	hsv(209, 72%, 76%)
CMYK	cmyk(71.6%, 35.1%, 0%, 23.9%)
CIE-LAB	lab(51.41, 0.60, -41.91)
CIE-LCH	lch(51.41, 41.92, 270.82°)
OKLab	oklab(58.04% -0.0431 -0.1191)
OKLCH	oklch(58.04% 0.127 250.1)
XYZ	xyz(18.7704, 19.6269, 53.8276)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EC2 #C27B37

analogous

#37C2C1 #377EC2 #3738C2

triadic

#377EC2 #C2377E #7EC237

tetradic

#377EC2 #C137C2 #C27B37 #38C237

square

#377EC2 #C137C2 #C27B37 #38C237

split-complementary

#377EC2 #C23738 #C2C137

monochromatic

#1C4063 #295F92 #377EC2 #639CD3 #93BBE0

Accessibility & contrast

On white

4.26

#377EC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#377EC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EC2

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EC2	#FFFFFF	#000000	##000000
##377EC2	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)

#5F82C5

Deuteranopia (green-blind)

#4B75C1

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377ec2;
/* rgb */ color: rgb(55, 126, 194);
/* oklch */ color: oklch(58.0% 0.127 250.1);

Tailwind

colors: {
  custom: {
    50: '#7fa3d5',
    500: '#377ec2',
    950: '#000000',
  },
}

SCSS

$custom: #377ec2;
$custom-light: #7fa3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#377ec2",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 194
  },
  "hsl": {
    "h": 209.353,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.5804,
    "c": 0.12663,
    "h": 250.1
  },
  "luminance": 0.19629
}

Semantic roles & 50–950 ramp

primary

#377EC2

secondary

#CBAA89

accent

#9249DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #377EC2

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

Preview Lab → · Contrast checker → · Palette generator →