#3371B2#3371B2

#3371B2 is a mid, vivid cyan. Relative luminance 0.157; OKLCH L 54.0% C 0.120 H 251.9°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#3371B2
RGB	rgb(51, 113, 178)
HSL	hsl(211, 55%, 45%)
HSV	hsv(211, 71%, 70%)
CMYK	cmyk(71.3%, 36.5%, 0%, 30.2%)
CIE-LAB	lab(46.61, 2.12, -40.29)
CIE-LCH	lch(46.61, 40.34, 273.02°)
OKLab	oklab(53.97% -0.0374 -0.1146)
OKLCH	oklch(53.97% 0.121 251.9)
XYZ	xyz(15.3033, 15.7268, 44.3399)
Luminance	0.1573 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3371B2 #B27433

analogous

#33B0B2 #3371B2 #3533B2

triadic

#3371B2 #B23371 #71B233

tetradic

#3371B2 #B233B0 #B27433 #33B235

square

#3371B2 #B233B0 #B27433 #33B235

split-complementary

#3371B2 #B23533 #B0B233

monochromatic

#183553 #255382 #3371B2 #5490CE #84AFDC

Accessibility & contrast

On white

5.07

#3371B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3371B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3371B2

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3371B2	#FFFFFF	#000000	##FFFFFF
##3371B2	1.00	5.07	4.15	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5475B5

Deuteranopia (green-blind)

#4169B1

Tritanopia (blue-blind)

#008089

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3371b2;
/* rgb */ color: rgb(51, 113, 178);
/* oklch */ color: oklch(54.0% 0.120 251.9);

Tailwind

colors: {
  custom: {
    50: '#7a99c9',
    500: '#3371b2',
    950: '#000000',
  },
}

SCSS

$custom: #3371b2;
$custom-light: #7a99c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3371b2",
  "rgb": {
    "r": 51,
    "g": 113,
    "b": 178
  },
  "hsl": {
    "h": 210.709,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.53969,
    "c": 0.1205,
    "h": 251.9
  },
  "luminance": 0.15728
}

Semantic roles & 50–950 ramp

primary

#3371B2

secondary

#C5A17C

accent

#9649DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3371B2

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

Preview Lab → · Contrast checker → · Palette generator →