#377EBC#377EBC

#377EBC is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.7% C 0.119 H 247.9°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#377EBC
RGB	rgb(55, 126, 188)
HSL	hsl(208, 55%, 48%)
HSV	hsv(208, 71%, 74%)
CMYK	cmyk(70.7%, 33%, 0%, 26.3%)
CIE-LAB	lab(51.11, -1.55, -38.95)
CIE-LCH	lch(51.11, 38.99, 267.73°)
OKLab	oklab(57.7% -0.0447 -0.1104)
OKLCH	oklch(57.7% 0.119 247.9)
XYZ	xyz(18.1101, 19.3628, 50.3502)
Luminance	0.1936 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EBC #BC7537

analogous

#37BCB8 #377EBC #373BBC

triadic

#377EBC #BC377E #7EBC37

tetradic

#377EBC #B837BC #BC7537 #3BBC37

square

#377EBC #B837BC #BC7537 #3BBC37

split-complementary

#377EBC #BC373B #BCB837

monochromatic

#1B3F5D #295E8D #377EBC #609CD0 #8FB9DE

Accessibility & contrast

On white

4.31

#377EBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#377EBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EBC

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EBC	#FFFFFF	#000000	##000000
##377EBC	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6281BF

Deuteranopia (green-blind)

#4F74BB

Tritanopia (blue-blind)

#008D94

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377ebc;
/* rgb */ color: rgb(55, 126, 188);
/* oklch */ color: oklch(57.7% 0.119 247.9);

Tailwind

colors: {
  custom: {
    50: '#7ea3d0',
    500: '#377ebc',
    950: '#000000',
  },
}

SCSS

$custom: #377ebc;
$custom-light: #7ea3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#377ebc",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 188
  },
  "hsl": {
    "h": 207.97,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.57702,
    "c": 0.11916,
    "h": 247.9
  },
  "luminance": 0.19365
}

Semantic roles & 50–950 ramp

primary

#377EBC

secondary

#C9A586

accent

#8F4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #377EBC

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

Preview Lab → · Contrast checker → · Palette generator →