#3370B0#3370B0

#3370B0 is a mid, moderate cyan. Relative luminance 0.154; OKLCH L 53.6% C 0.119 H 251.9°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#3370B0
RGB	rgb(51, 112, 176)
HSL	hsl(211, 55%, 45%)
HSV	hsv(211, 71%, 69%)
CMYK	cmyk(71%, 36.4%, 0%, 31%)
CIE-LAB	lab(46.21, 2.01, -39.76)
CIE-LCH	lch(46.21, 39.81, 272.89°)
OKLab	oklab(53.62% -0.0369 -0.113)
OKLCH	oklch(53.62% 0.119 251.9)
XYZ	xyz(14.9930, 15.4251, 43.2531)
Luminance	0.1543 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3370B0 #B07333

analogous

#33AFB0 #3370B0 #3533B0

triadic

#3370B0 #B03370 #70B033

tetradic

#3370B0 #B033AF #B07333 #33B035

square

#3370B0 #B033AF #B07333 #33B035

split-complementary

#3370B0 #B03533 #AFB033

monochromatic

#183451 #255281 #3370B0 #538FCD #82AEDB

Accessibility & contrast

On white

5.14

#3370B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#3370B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3370B0

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3370B0	#FFFFFF	#000000	##FFFFFF
##3370B0	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5374B3

Deuteranopia (green-blind)

#4168AF

Tritanopia (blue-blind)

#007F87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3370b0;
/* rgb */ color: rgb(51, 112, 176);
/* oklch */ color: oklch(53.6% 0.119 251.9);

Tailwind

colors: {
  custom: {
    50: '#7a98c8',
    500: '#3370b0',
    950: '#000000',
  },
}

SCSS

$custom: #3370b0;
$custom-light: #7a98c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3370b0",
  "rgb": {
    "r": 51,
    "g": 112,
    "b": 176
  },
  "hsl": {
    "h": 210.72,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53618,
    "c": 0.1189,
    "h": 251.9
  },
  "luminance": 0.15427
}

Semantic roles & 50–950 ramp

primary

#3370B0

secondary

#C4A07B

accent

#9649DE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3370B0

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

Preview Lab → · Contrast checker → · Palette generator →