#3373B3#3373B3

#3373B3 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.5% C 0.120 H 251.0°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3373B3
RGB	rgb(51, 115, 179)
HSL	hsl(210, 56%, 45%)
HSV	hsv(210, 72%, 70%)
CMYK	cmyk(71.5%, 35.8%, 0%, 29.8%)
CIE-LAB	lab(47.26, 1.26, -39.85)
CIE-LCH	lch(47.26, 39.87, 271.81°)
OKLab	oklab(54.49% -0.039 -0.1132)
OKLCH	oklch(54.49% 0.12 251)
XYZ	xyz(15.6296, 16.2182, 44.9458)
Luminance	0.1622 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3373B3 #B37333

analogous

#33B3B3 #3373B3 #3333B3

triadic

#3373B3 #B33373 #73B333

tetradic

#3373B3 #B333B3 #B37333 #33B333

square

#3373B3 #B333B3 #B37333 #33B333

split-complementary

#3373B3 #B33333 #B3B333

monochromatic

#183654 #255483 #3373B3 #5592CE #84B0DC

Accessibility & contrast

On white

4.95

#3373B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3373B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3373B3

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3373B3	#FFFFFF	#000000	##FFFFFF
##3373B3	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5677B6

Deuteranopia (green-blind)

#436BB2

Tritanopia (blue-blind)

#00828A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3373b3;
/* rgb */ color: rgb(51, 115, 179);
/* oklch */ color: oklch(54.5% 0.120 251.0);

Tailwind

colors: {
  custom: {
    50: '#7a9aca',
    500: '#3373b3',
    950: '#000000',
  },
}

SCSS

$custom: #3373b3;
$custom-light: #7a9aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3373b3",
  "rgb": {
    "r": 51,
    "g": 115,
    "b": 179
  },
  "hsl": {
    "h": 210,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.54491,
    "c": 0.11978,
    "h": 251
  },
  "luminance": 0.1622
}

Semantic roles & 50–950 ramp

primary

#3373B3

secondary

#C6A17C

accent

#9449DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3373B3

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

Preview Lab → · Contrast checker → · Palette generator →