#377EC1#377EC1

#377EC1 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.0% C 0.125 H 249.8°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#377EC1
RGB	rgb(55, 126, 193)
HSL	hsl(209, 56%, 49%)
HSV	hsv(209, 72%, 76%)
CMYK	cmyk(71.5%, 34.7%, 0%, 24.3%)
CIE-LAB	lab(51.36, 0.24, -41.42)
CIE-LCH	lch(51.36, 41.42, 270.33°)
OKLab	oklab(57.98% -0.0433 -0.1176)
OKLCH	oklch(57.98% 0.125 249.8)
XYZ	xyz(18.6584, 19.5821, 53.2381)
Luminance	0.1958 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EC1 #C17A37

analogous

#37C1BF #377EC1 #3739C1

triadic

#377EC1 #C1377E #7EC137

tetradic

#377EC1 #BF37C1 #C17A37 #39C137

square

#377EC1 #BF37C1 #C17A37 #39C137

split-complementary

#377EC1 #C13739 #C1BF37

monochromatic

#1C4062 #295F91 #377EC1 #639CD2 #92BAE0

Accessibility & contrast

On white

4.27

#377EC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#377EC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EC1

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EC1	#FFFFFF	#000000	##000000
##377EC1	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6081C4

Deuteranopia (green-blind)

#4C75C0

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377ec1;
/* rgb */ color: rgb(55, 126, 193);
/* oklch */ color: oklch(58.0% 0.125 249.8);

Tailwind

colors: {
  custom: {
    50: '#7fa3d4',
    500: '#377ec1',
    950: '#000000',
  },
}

SCSS

$custom: #377ec1;
$custom-light: #7fa3d4;
$custom-dark: #000000;

JSON

{
  "hex": "#377ec1",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 193
  },
  "hsl": {
    "h": 209.13,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57983,
    "c": 0.12537,
    "h": 249.8
  },
  "luminance": 0.19584
}

Semantic roles & 50–950 ramp

primary

#377EC1

secondary

#CBA989

accent

#9249DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #377EC1

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

Preview Lab → · Contrast checker → · Palette generator →