#3377B7#3377B7

#3377B7 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.7% C 0.121 H 249.8°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3377B7
RGB	rgb(51, 119, 183)
HSL	hsl(209, 56%, 46%)
HSV	hsv(209, 72%, 72%)
CMYK	cmyk(72.1%, 35%, 0%, 28.2%)
CIE-LAB	lab(48.65, 0.28, -39.96)
CIE-LCH	lch(48.65, 39.96, 270.40°)
OKLab	oklab(55.65% -0.0418 -0.1135)
OKLCH	oklch(55.65% 0.121 249.8)
XYZ	xyz(16.5061, 17.3145, 47.2627)
Luminance	0.1732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B7 #B77333

analogous

#33B7B5 #3377B7 #3335B7

triadic

#3377B7 #B73377 #77B733

tetradic

#3377B7 #B533B7 #B77333 #35B733

square

#3377B7 #B533B7 #B77333 #35B733

split-complementary

#3377B7 #B73335 #B7B533

monochromatic

#183957 #265887 #3377B7 #5795D0 #87B4DE

Accessibility & contrast

On white

4.71

#3377B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3377B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B7

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B7	#FFFFFF	#000000	##FFFFFF
##3377B7	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7ABA

Deuteranopia (green-blind)

#476EB6

Tritanopia (blue-blind)

#00868E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3377b7;
/* rgb */ color: rgb(51, 119, 183);
/* oklch */ color: oklch(55.7% 0.121 249.8);

Tailwind

colors: {
  custom: {
    50: '#7b9dcd',
    500: '#3377b7',
    950: '#000000',
  },
}

SCSS

$custom: #3377b7;
$custom-light: #7b9dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b7",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 183
  },
  "hsl": {
    "h": 209.091,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.55653,
    "c": 0.12098,
    "h": 249.8
  },
  "luminance": 0.17316
}

Semantic roles & 50–950 ramp

primary

#3377B7

secondary

#C7A27F

accent

#9248E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3377B7

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

Preview Lab → · Contrast checker → · Palette generator →