#3377B8#3377B8

#3377B8 is a mid, vivid cyan. Relative luminance 0.174; OKLCH L 55.7% C 0.122 H 250.1°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3377B8
RGB	rgb(51, 119, 184)
HSL	hsl(209, 57%, 46%)
HSV	hsv(209, 72%, 72%)
CMYK	cmyk(72.3%, 35.3%, 0%, 27.8%)
CIE-LAB	lab(48.71, 0.64, -40.45)
CIE-LCH	lch(48.71, 40.46, 270.91°)
OKLab	oklab(55.71% -0.0416 -0.115)
OKLCH	oklch(55.71% 0.122 250.1)
XYZ	xyz(16.6105, 17.3563, 47.8128)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B8 #B87433

analogous

#33B8B6 #3377B8 #3334B8

triadic

#3377B8 #B83377 #77B833

tetradic

#3377B8 #B633B8 #B87433 #34B833

square

#3377B8 #B633B8 #B87433 #34B833

split-complementary

#3377B8 #B83334 #B8B633

monochromatic

#183958 #265888 #3377B8 #5895D1 #88B4DE

Accessibility & contrast

On white

4.70

#3377B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3377B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B8

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B8	#FFFFFF	#000000	##FFFFFF
##3377B8	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBB

Deuteranopia (green-blind)

#466EB7

Tritanopia (blue-blind)

#00868F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3377b8;
/* rgb */ color: rgb(51, 119, 184);
/* oklch */ color: oklch(55.7% 0.122 250.1);

Tailwind

colors: {
  custom: {
    50: '#7b9dcd',
    500: '#3377b8',
    950: '#000000',
  },
}

SCSS

$custom: #3377b8;
$custom-light: #7b9dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b8",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 184
  },
  "hsl": {
    "h": 209.323,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.55711,
    "c": 0.12225,
    "h": 250.1
  },
  "luminance": 0.17358
}

Semantic roles & 50–950 ramp

primary

#3377B8

secondary

#C8A37F

accent

#9248E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3377B8

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

Preview Lab → · Contrast checker → · Palette generator →