#3374BB#3374BB

#3374BB is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.2% C 0.129 H 252.9°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3374BB
RGB	rgb(51, 116, 187)
HSL	hsl(211, 57%, 47%)
HSV	hsv(211, 73%, 73%)
CMYK	cmyk(72.7%, 38%, 0%, 26.7%)
CIE-LAB	lab(47.98, 3.57, -43.33)
CIE-LCH	lch(47.98, 43.48, 274.71°)
OKLab	oklab(55.2% -0.0379 -0.1234)
OKLCH	oklch(55.2% 0.129 252.9)
XYZ	xyz(16.5769, 16.7806, 49.3694)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3374BB #BB7A33

analogous

#33B8BB #3374BB #3633BB

triadic

#3374BB #BB3374 #74BB33

tetradic

#3374BB #BB33B8 #BB7A33 #33BB36

square

#3374BB #BB33B8 #BB7A33 #33BB36

split-complementary

#3374BB #BB3633 #B8BB33

monochromatic

#19385B #26568B #3374BB #5993D2 #89B2DF

Accessibility & contrast

On white

4.82

#3374BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3374BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3374BB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3374BB	#FFFFFF	#000000	##FFFFFF
##3374BB	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BE

Deuteranopia (green-blind)

#3F6CBA

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3374bb;
/* rgb */ color: rgb(51, 116, 187);
/* oklch */ color: oklch(55.2% 0.129 252.9);

Tailwind

colors: {
  custom: {
    50: '#7c9bd0',
    500: '#3374bb',
    950: '#000000',
  },
}

SCSS

$custom: #3374bb;
$custom-light: #7c9bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3374bb",
  "rgb": {
    "r": 51,
    "g": 116,
    "b": 187
  },
  "hsl": {
    "h": 211.324,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55197,
    "c": 0.12913,
    "h": 252.9
  },
  "luminance": 0.16782
}

Semantic roles & 50–950 ramp

primary

#3374BB

secondary

#C9A681

accent

#9747E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3374BB

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

Preview Lab → · Contrast checker → · Palette generator →