#3371BF#3371BF

#3371BF is a mid, vivid cyan. Relative luminance 0.163; OKLCH L 54.8% C 0.138 H 255.6°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3371BF
RGB	rgb(51, 113, 191)
HSL	hsl(213, 58%, 47%)
HSV	hsv(213, 73%, 75%)
CMYK	cmyk(73.3%, 40.8%, 0%, 25.1%)
CIE-LAB	lab(47.33, 6.90, -46.68)
CIE-LCH	lch(47.33, 47.19, 278.41°)
OKLab	oklab(54.76% -0.0342 -0.1333)
OKLCH	oklch(54.76% 0.138 255.6)
XYZ	xyz(16.6709, 16.2738, 51.5427)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3371BF #BF8133

analogous

#33B7BF #3371BF #3B33BF

triadic

#3371BF #BF3371 #71BF33

tetradic

#3371BF #BF33B7 #BF8133 #33BF3B

square

#3371BF #BF33B7 #BF8133 #33BF3B

split-complementary

#3371BF #BF3B33 #B7BF33

monochromatic

#19385E #26548F #3371BF #5C91D3 #8CB1E0

Accessibility & contrast

On white

4.94

#3371BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#3371BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3371BF

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3371BF	#FFFFFF	#000000	##FFFFFF
##3371BF	1.00	4.94	4.26	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C77C2

Deuteranopia (green-blind)

#356ABD

Tritanopia (blue-blind)

#00838F

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3371bf;
/* rgb */ color: rgb(51, 113, 191);
/* oklch */ color: oklch(54.8% 0.138 255.6);

Tailwind

colors: {
  custom: {
    50: '#7d99d3',
    500: '#3371bf',
    950: '#000000',
  },
}

SCSS

$custom: #3371bf;
$custom-light: #7d99d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3371bf",
  "rgb": {
    "r": 51,
    "g": 113,
    "b": 191
  },
  "hsl": {
    "h": 213.429,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54762,
    "c": 0.13761,
    "h": 255.6
  },
  "luminance": 0.16276
}

Semantic roles & 50–950 ramp

primary

#3371BF

secondary

#CBAB83

accent

#9D47E1

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3371BF

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

Preview Lab → · Contrast checker → · Palette generator →