#3373B4#3373B4

#3373B4 is a mid, vivid cyan. Relative luminance 0.163; OKLCH L 54.5% C 0.121 H 251.3°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3373B4
RGB	rgb(51, 115, 180)
HSL	hsl(210, 56%, 45%)
HSV	hsv(210, 72%, 71%)
CMYK	cmyk(71.7%, 36.1%, 0%, 29.4%)
CIE-LAB	lab(47.31, 1.62, -40.34)
CIE-LCH	lch(47.31, 40.38, 272.31°)
OKLab	oklab(54.55% -0.0388 -0.1147)
OKLCH	oklch(54.55% 0.121 251.3)
XYZ	xyz(15.7311, 16.2588, 45.4804)
Luminance	0.1626 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3373B4 #B47433

analogous

#33B3B4 #3373B4 #3433B4

triadic

#3373B4 #B43373 #73B433

tetradic

#3373B4 #B433B3 #B47433 #33B434

square

#3373B4 #B433B3 #B47433 #33B434

split-complementary

#3373B4 #B43433 #B3B433

monochromatic

#183655 #255584 #3373B4 #5592CF #85B0DC

Accessibility & contrast

On white

4.94

#3373B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3373B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3373B4

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3373B4	#FFFFFF	#000000	##FFFFFF
##3373B4	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5677B7

Deuteranopia (green-blind)

#436BB3

Tritanopia (blue-blind)

#00828B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3373b4;
/* rgb */ color: rgb(51, 115, 180);
/* oklch */ color: oklch(54.5% 0.121 251.3);

Tailwind

colors: {
  custom: {
    50: '#7b9acb',
    500: '#3373b4',
    950: '#000000',
  },
}

SCSS

$custom: #3373b4;
$custom-light: #7b9acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3373b4",
  "rgb": {
    "r": 51,
    "g": 115,
    "b": 180
  },
  "hsl": {
    "h": 210.233,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.5455,
    "c": 0.12107,
    "h": 251.3
  },
  "luminance": 0.16261
}

Semantic roles & 50–950 ramp

primary

#3373B4

secondary

#C6A27D

accent

#9449DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3373B4

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

Preview Lab → · Contrast checker → · Palette generator →