#3373B9#3373B9

#3373B9 is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 54.8% C 0.128 H 252.9°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3373B9
RGB	rgb(51, 115, 185)
HSL	hsl(211, 57%, 46%)
HSV	hsv(211, 72%, 73%)
CMYK	cmyk(72.4%, 37.8%, 0%, 27.5%)
CIE-LAB	lab(47.58, 3.45, -42.82)
CIE-LCH	lch(47.58, 42.96, 274.61°)
OKLab	oklab(54.85% -0.0375 -0.1219)
OKLCH	oklch(54.85% 0.128 252.9)
XYZ	xyz(16.2497, 16.4663, 48.2114)
Luminance	0.1647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3373B9 #B97933

analogous

#33B6B9 #3373B9 #3633B9

triadic

#3373B9 #B93373 #73B933

tetradic

#3373B9 #B933B6 #B97933 #33B936

square

#3373B9 #B933B6 #B97933 #33B936

split-complementary

#3373B9 #B93633 #B6B933

monochromatic

#193759 #265589 #3373B9 #5892D1 #88B1DE

Accessibility & contrast

On white

4.89

#3373B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3373B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3373B9

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3373B9	#FFFFFF	#000000	##FFFFFF
##3373B9	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5378BC

Deuteranopia (green-blind)

#3F6BB8

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3373b9;
/* rgb */ color: rgb(51, 115, 185);
/* oklch */ color: oklch(54.8% 0.128 252.9);

Tailwind

colors: {
  custom: {
    50: '#7b9ace',
    500: '#3373b9',
    950: '#000000',
  },
}

SCSS

$custom: #3373b9;
$custom-light: #7b9ace;
$custom-dark: #000000;

JSON

{
  "hex": "#3373b9",
  "rgb": {
    "r": 51,
    "g": 115,
    "b": 185
  },
  "hsl": {
    "h": 211.343,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.54847,
    "c": 0.12756,
    "h": 252.9
  },
  "luminance": 0.16468
}

Semantic roles & 50–950 ramp

primary

#3373B9

secondary

#C8A680

accent

#9748E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3373B9

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

Preview Lab → · Contrast checker → · Palette generator →