#3371BC#3371BC

#3371BC is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.6% C 0.134 H 254.9°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3371BC
RGB	rgb(51, 113, 188)
HSL	hsl(213, 57%, 47%)
HSV	hsv(213, 73%, 74%)
CMYK	cmyk(72.9%, 39.9%, 0%, 26.3%)
CIE-LAB	lab(47.16, 5.79, -45.22)
CIE-LCH	lch(47.16, 45.59, 277.30°)
OKLab	oklab(54.58% -0.0349 -0.129)
OKLCH	oklch(54.58% 0.134 254.9)
XYZ	xyz(16.3441, 16.1431, 49.8218)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3371BC #BC7E33

analogous

#33B6BC #3371BC #3A33BC

triadic

#3371BC #BC3371 #71BC33

tetradic

#3371BC #BC33B6 #BC7E33 #33BC3A

square

#3371BC #BC33B6 #BC7E33 #33BC3A

split-complementary

#3371BC #BC3A33 #B6BC33

monochromatic

#19375C #26548C #3371BC #5A90D2 #8AB1DF

Accessibility & contrast

On white

4.97

#3371BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#3371BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3371BC

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3371BC	#FFFFFF	#000000	##FFFFFF
##3371BC	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E77BF

Deuteranopia (green-blind)

#386ABA

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3371bc;
/* rgb */ color: rgb(51, 113, 188);
/* oklch */ color: oklch(54.6% 0.134 254.9);

Tailwind

colors: {
  custom: {
    50: '#7c99d0',
    500: '#3371bc',
    950: '#000000',
  },
}

SCSS

$custom: #3371bc;
$custom-light: #7c99d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3371bc",
  "rgb": {
    "r": 51,
    "g": 113,
    "b": 188
  },
  "hsl": {
    "h": 212.847,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54575,
    "c": 0.13363,
    "h": 254.9
  },
  "luminance": 0.16145
}

Semantic roles & 50–950 ramp

primary

#3371BC

secondary

#C9A981

accent

#9B47E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3371BC

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

Preview Lab → · Contrast checker → · Palette generator →