#3371B4#3371B4

#3371B4 is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.1% C 0.123 H 252.6°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3371B4
RGB	rgb(51, 113, 180)
HSL	hsl(211, 56%, 45%)
HSV	hsv(211, 72%, 71%)
CMYK	cmyk(71.7%, 37.2%, 0%, 29.4%)
CIE-LAB	lab(46.72, 2.85, -41.28)
CIE-LCH	lch(46.72, 41.38, 273.95°)
OKLab	oklab(54.09% -0.0368 -0.1175)
OKLCH	oklch(54.09% 0.123 252.6)
XYZ	xyz(15.5055, 15.8077, 45.4052)
Luminance	0.1581 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3371B4 #B47633

analogous

#33B1B4 #3371B4 #3633B4

triadic

#3371B4 #B43371 #71B433

tetradic

#3371B4 #B433B1 #B47633 #33B436

square

#3371B4 #B433B1 #B47633 #33B436

split-complementary

#3371B4 #B43633 #B1B433

monochromatic

#183555 #255384 #3371B4 #5590CF #85AFDC

Accessibility & contrast

On white

5.05

#3371B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3371B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3371B4

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3371B4	#FFFFFF	#000000	##FFFFFF
##3371B4	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5275B7

Deuteranopia (green-blind)

#3F69B3

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3371b4;
/* rgb */ color: rgb(51, 113, 180);
/* oklch */ color: oklch(54.1% 0.123 252.6);

Tailwind

colors: {
  custom: {
    50: '#7b99cb',
    500: '#3371b4',
    950: '#000000',
  },
}

SCSS

$custom: #3371b4;
$custom-light: #7b99cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3371b4",
  "rgb": {
    "r": 51,
    "g": 113,
    "b": 180
  },
  "hsl": {
    "h": 211.163,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.54087,
    "c": 0.12311,
    "h": 252.6
  },
  "luminance": 0.15809
}

Semantic roles & 50–950 ramp

primary

#3371B4

secondary

#C6A37D

accent

#9749DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3371B4

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

Preview Lab → · Contrast checker → · Palette generator →