#3370B8#3370B8

#3370B8 is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.1% C 0.129 H 254.4°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3370B8
RGB	rgb(51, 112, 184)
HSL	hsl(212, 57%, 46%)
HSV	hsv(212, 72%, 72%)
CMYK	cmyk(72.3%, 39.1%, 0%, 27.8%)
CIE-LAB	lab(46.65, 4.94, -43.72)
CIE-LCH	lch(46.65, 44.00, 276.45°)
OKLab	oklab(54.1% -0.0349 -0.1246)
OKLCH	oklch(54.1% 0.129 254.4)
XYZ	xyz(15.8079, 15.7511, 47.5453)
Luminance	0.1575 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3370B8 #B87B33

analogous

#33B2B8 #3370B8 #3833B8

triadic

#3370B8 #B83370 #70B833

tetradic

#3370B8 #B833B2 #B87B33 #33B838

square

#3370B8 #B833B2 #B87B33 #33B838

split-complementary

#3370B8 #B83833 #B2B833

monochromatic

#183658 #265388 #3370B8 #588FD1 #88AFDE

Accessibility & contrast

On white

5.06

#3370B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3370B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3370B8

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3370B8	#FFFFFF	#000000	##FFFFFF
##3370B8	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F75BB

Deuteranopia (green-blind)

#3A69B7

Tritanopia (blue-blind)

#00818B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3370b8;
/* rgb */ color: rgb(51, 112, 184);
/* oklch */ color: oklch(54.1% 0.129 254.4);

Tailwind

colors: {
  custom: {
    50: '#7b98ce',
    500: '#3370b8',
    950: '#000000',
  },
}

SCSS

$custom: #3370b8;
$custom-light: #7b98ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3370b8",
  "rgb": {
    "r": 51,
    "g": 112,
    "b": 184
  },
  "hsl": {
    "h": 212.481,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.541,
    "c": 0.12942,
    "h": 254.4
  },
  "luminance": 0.15753
}

Semantic roles & 50–950 ramp

primary

#3370B8

secondary

#C8A67F

accent

#9A48E0

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3370B8

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

Preview Lab → · Contrast checker → · Palette generator →