#3377B9#3377B9

#3377B9 is a mid, vivid cyan. Relative luminance 0.174; OKLCH L 55.8% C 0.124 H 250.5°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3377B9
RGB	rgb(51, 119, 185)
HSL	hsl(210, 57%, 46%)
HSV	hsv(210, 72%, 73%)
CMYK	cmyk(72.4%, 35.7%, 0%, 27.5%)
CIE-LAB	lab(48.76, 1.00, -40.95)
CIE-LCH	lch(48.76, 40.96, 271.40°)
OKLab	oklab(55.77% -0.0413 -0.1164)
OKLCH	oklch(55.77% 0.124 250.5)
XYZ	xyz(16.7157, 17.3984, 48.3668)
Luminance	0.1740 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B9 #B97533

analogous

#33B9B8 #3377B9 #3334B9

triadic

#3377B9 #B93377 #77B933

tetradic

#3377B9 #B833B9 #B97533 #34B933

square

#3377B9 #B833B9 #B97533 #34B933

split-complementary

#3377B9 #B93334 #B9B833

monochromatic

#193959 #265889 #3377B9 #5896D1 #88B4DE

Accessibility & contrast

On white

4.69

#3377B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#3377B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B9

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B9	#FFFFFF	#000000	##FFFFFF
##3377B9	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBC

Deuteranopia (green-blind)

#456EB8

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3377b9;
/* rgb */ color: rgb(51, 119, 185);
/* oklch */ color: oklch(55.8% 0.124 250.5);

Tailwind

colors: {
  custom: {
    50: '#7b9dce',
    500: '#3377b9',
    950: '#000000',
  },
}

SCSS

$custom: #3377b9;
$custom-light: #7b9dce;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b9",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 185
  },
  "hsl": {
    "h": 209.552,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55769,
    "c": 0.12352,
    "h": 250.5
  },
  "luminance": 0.174
}

Semantic roles & 50–950 ramp

primary

#3377B9

secondary

#C8A380

accent

#9348E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3377B9

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

Preview Lab → · Contrast checker → · Palette generator →