#3379CC#3379CC

#3379CC is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.4% C 0.146 H 254.7°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3379CC
RGB	rgb(51, 121, 204)
HSL	hsl(213, 60%, 50%)
HSV	hsv(213, 75%, 80%)
CMYK	cmyk(75%, 40.7%, 0%, 20%)
CIE-LAB	lab(50.38, 6.75, -49.27)
CIE-LCH	lch(50.38, 49.73, 277.80°)
OKLab	oklab(57.37% -0.0385 -0.1408)
OKLCH	oklch(57.37% 0.146 254.7)
XYZ	xyz(19.0977, 18.7360, 59.7249)
Luminance	0.1874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3379CC #CC8633

analogous

#33C6CC #3379CC #3933CC

triadic

#3379CC #CC3379 #79CC33

tetradic

#3379CC #CC33C6 #CC8633 #33CC39

square

#3379CC #CC33C6 #CC8633 #33CC39

split-complementary

#3379CC #CC3933 #C6CC33

monochromatic

#1B3F6A #275C9B #3379CC #6499D8 #95B9E4

Accessibility & contrast

On white

4.42

#3379CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#3379CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3379CC

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3379CC	#FFFFFF	#000000	##000000
##3379CC	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#517FCF

Deuteranopia (green-blind)

#3871CA

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3379cc;
/* rgb */ color: rgb(51, 121, 204);
/* oklch */ color: oklch(57.4% 0.146 254.7);

Tailwind

colors: {
  custom: {
    50: '#7f9fdc',
    500: '#3379cc',
    950: '#000000',
  },
}

SCSS

$custom: #3379cc;
$custom-light: #7f9fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3379cc",
  "rgb": {
    "r": 51,
    "g": 121,
    "b": 204
  },
  "hsl": {
    "h": 212.549,
    "s": 60,
    "l": 50
  },
  "oklch": {
    "l": 0.57371,
    "c": 0.14595,
    "h": 254.7
  },
  "luminance": 0.18738
}

Semantic roles & 50–950 ramp

primary

#3379CC

secondary

#D0B08B

accent

#9B45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3379CC

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

Preview Lab → · Contrast checker → · Palette generator →