#3377B2#3377B2

#3377B2 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.4% C 0.115 H 247.8°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3377B2
RGB	rgb(51, 119, 178)
HSL	hsl(208, 55%, 45%)
HSV	hsv(208, 71%, 70%)
CMYK	cmyk(71.3%, 33.1%, 0%, 30.2%)
CIE-LAB	lab(48.40, -1.53, -37.47)
CIE-LCH	lch(48.40, 37.50, 267.66°)
OKLab	oklab(55.37% -0.0433 -0.1062)
OKLCH	oklch(55.37% 0.115 247.8)
XYZ	xyz(15.9949, 17.1101, 44.5705)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B2 #B26E33

analogous

#33B2AE #3377B2 #3337B2

triadic

#3377B2 #B23377 #77B233

tetradic

#3377B2 #AE33B2 #B26E33 #37B233

square

#3377B2 #AE33B2 #B26E33 #37B233

split-complementary

#3377B2 #B23337 #B2AE33

monochromatic

#183753 #255782 #3377B2 #5495CE #84B3DC

Accessibility & contrast

On white

4.75

#3377B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3377B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B2

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B2	#FFFFFF	#000000	##FFFFFF
##3377B2	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7AB5

Deuteranopia (green-blind)

#4B6EB1

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3377b2;
/* rgb */ color: rgb(51, 119, 178);
/* oklch */ color: oklch(55.4% 0.115 247.8);

Tailwind

colors: {
  custom: {
    50: '#7a9dc9',
    500: '#3377b2',
    950: '#000000',
  },
}

SCSS

$custom: #3377b2;
$custom-light: #7a9dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b2",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 178
  },
  "hsl": {
    "h": 207.874,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.55369,
    "c": 0.11471,
    "h": 247.8
  },
  "luminance": 0.17112
}

Semantic roles & 50–950 ramp

primary

#3377B2

secondary

#C59E7C

accent

#8F49DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3377B2

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

Preview Lab → · Contrast checker → · Palette generator →