#3377B5#3377B5

#3377B5 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.5% C 0.118 H 249.0°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3377B5
RGB	rgb(51, 119, 181)
HSL	hsl(209, 56%, 45%)
HSV	hsv(209, 72%, 71%)
CMYK	cmyk(71.8%, 34.3%, 0%, 29%)
CIE-LAB	lab(48.55, -0.45, -38.97)
CIE-LCH	lch(48.55, 38.97, 269.34°)
OKLab	oklab(55.54% -0.0424 -0.1106)
OKLCH	oklch(55.54% 0.118 249)
XYZ	xyz(16.2994, 17.2319, 46.1742)
Luminance	0.1723 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B5 #B57133

analogous

#33B5B2 #3377B5 #3336B5

triadic

#3377B5 #B53377 #77B533

tetradic

#3377B5 #B233B5 #B57133 #36B533

square

#3377B5 #B233B5 #B57133 #36B533

split-complementary

#3377B5 #B53336 #B5B233

monochromatic

#183856 #265885 #3377B5 #5695CF #86B3DD

Accessibility & contrast

On white

4.72

#3377B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3377B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B5	#FFFFFF	#000000	##FFFFFF
##3377B5	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7AB8

Deuteranopia (green-blind)

#486EB4

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3377b5;
/* rgb */ color: rgb(51, 119, 181);
/* oklch */ color: oklch(55.5% 0.118 249.0);

Tailwind

colors: {
  custom: {
    50: '#7b9dcb',
    500: '#3377b5',
    950: '#000000',
  },
}

SCSS

$custom: #3377b5;
$custom-light: #7b9dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b5",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 181
  },
  "hsl": {
    "h": 208.615,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.55539,
    "c": 0.11846,
    "h": 249
  },
  "luminance": 0.17234
}

Semantic roles & 50–950 ramp

primary

#3377B5

secondary

#C6A07D

accent

#9048DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3377B5

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

Preview Lab → · Contrast checker → · Palette generator →