#3371B5#3371B5

#3371B5 is a mid, vivid cyan. Relative luminance 0.159; OKLCH L 54.1% C 0.124 H 252.9°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3371B5
RGB	rgb(51, 113, 181)
HSL	hsl(211, 56%, 45%)
HSV	hsv(211, 72%, 71%)
CMYK	cmyk(71.8%, 37.6%, 0%, 29%)
CIE-LAB	lab(46.78, 3.22, -41.78)
CIE-LCH	lch(46.78, 41.90, 274.41°)
OKLab	oklab(54.15% -0.0366 -0.1189)
OKLCH	oklch(54.15% 0.124 252.9)
XYZ	xyz(15.6078, 15.8486, 45.9436)
Luminance	0.1585 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3371B5 #B57733

analogous

#33B2B5 #3371B5 #3633B5

triadic

#3371B5 #B53371 #71B533

tetradic

#3371B5 #B533B2 #B57733 #33B536

square

#3371B5 #B533B2 #B57733 #33B536

split-complementary

#3371B5 #B53633 #B2B533

monochromatic

#183556 #265385 #3371B5 #5690CF #86AFDD

Accessibility & contrast

On white

5.04

#3371B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#3371B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3371B5

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3371B5	#FFFFFF	#000000	##FFFFFF
##3371B5	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5275B8

Deuteranopia (green-blind)

#3F69B4

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3371b5;
/* rgb */ color: rgb(51, 113, 181);
/* oklch */ color: oklch(54.1% 0.124 252.9);

Tailwind

colors: {
  custom: {
    50: '#7b99cb',
    500: '#3371b5',
    950: '#000000',
  },
}

SCSS

$custom: #3371b5;
$custom-light: #7b99cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3371b5",
  "rgb": {
    "r": 51,
    "g": 113,
    "b": 181
  },
  "hsl": {
    "h": 211.385,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.54147,
    "c": 0.12442,
    "h": 252.9
  },
  "luminance": 0.1585
}

Semantic roles & 50–950 ramp

primary

#3371B5

secondary

#C6A47D

accent

#9748DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3371B5

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

Preview Lab → · Contrast checker → · Palette generator →