#3381BB#3381BB

#3381BB is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.2% C 0.117 H 244.5°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3381BB
RGB	rgb(51, 129, 187)
HSL	hsl(206, 57%, 47%)
HSV	hsv(206, 73%, 73%)
CMYK	cmyk(72.7%, 31%, 0%, 26.7%)
CIE-LAB	lab(51.83, -4.26, -37.26)
CIE-LCH	lch(51.83, 37.50, 263.48°)
OKLab	oklab(58.22% -0.0504 -0.1055)
OKLCH	oklch(58.22% 0.117 244.5)
XYZ	xyz(18.1817, 19.9901, 49.9043)
Luminance	0.1999 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3381BB #BB6D33

analogous

#33BBB1 #3381BB #333DBB

triadic

#3381BB #BB3381 #81BB33

tetradic

#3381BB #B133BB #BB6D33 #3DBB33

square

#3381BB #B133BB #BB6D33 #3DBB33

split-complementary

#3381BB #BB333D #BBB133

monochromatic

#193F5B #26608B #3381BB #599ED2 #89BADF

Accessibility & contrast

On white

4.20

#3381BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#3381BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3381BB

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3381BB	#FFFFFF	#000000	##000000
##3381BB	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6783BE

Deuteranopia (green-blind)

#5476BA

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3381bb;
/* rgb */ color: rgb(51, 129, 187);
/* oklch */ color: oklch(58.2% 0.117 244.5);

Tailwind

colors: {
  custom: {
    50: '#7ca5cf',
    500: '#3381bb',
    950: '#000000',
  },
}

SCSS

$custom: #3381bb;
$custom-light: #7ca5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3381bb",
  "rgb": {
    "r": 51,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 205.588,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.58216,
    "c": 0.11693,
    "h": 244.5
  },
  "luminance": 0.19992
}

Semantic roles & 50–950 ramp

primary

#3381BB

secondary

#C9A081

accent

#8947E0

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3381BB

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

Preview Lab → · Contrast checker → · Palette generator →