#3979C4#3979C4

#3979C4 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.1% C 0.133 H 254.1°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3979C4
RGB	rgb(57, 121, 196)
HSL	hsl(212, 55%, 50%)
HSV	hsv(212, 71%, 77%)
CMYK	cmyk(70.9%, 38.3%, 0%, 23.1%)
CIE-LAB	lab(50.13, 4.64, -45.09)
CIE-LCH	lch(50.13, 45.32, 275.88°)
OKLab	oklab(57.09% -0.0365 -0.1284)
OKLCH	oklch(57.09% 0.133 254.1)
XYZ	xyz(18.4848, 18.5281, 54.8159)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979C4 #C48439

analogous

#39BFC4 #3979C4 #3E39C4

triadic

#3979C4 #C43979 #79C439

tetradic

#3979C4 #C439BF #C48439 #39C43E

square

#3979C4 #C439BF #C48439 #39C43E

split-complementary

#3979C4 #C43E39 #BFC439

monochromatic

#1D3E65 #2B5C95 #3979C4 #6799D3 #97B9E1

Accessibility & contrast

On white

4.46

#3979C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#3979C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979C4

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979C4	#FFFFFF	#000000	##000000
##3979C4	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#577EC7

Deuteranopia (green-blind)

#4271C2

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3979c4;
/* rgb */ color: rgb(57, 121, 196);
/* oklch */ color: oklch(57.1% 0.133 254.1);

Tailwind

colors: {
  custom: {
    50: '#809fd6',
    500: '#3979c4',
    950: '#000000',
  },
}

SCSS

$custom: #3979c4;
$custom-light: #809fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3979c4",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 196
  },
  "hsl": {
    "h": 212.374,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.5709,
    "c": 0.13349,
    "h": 254.1
  },
  "luminance": 0.1853
}

Semantic roles & 50–950 ramp

primary

#3979C4

secondary

#CCAF8D

accent

#9A4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3979C4

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

Preview Lab → · Contrast checker → · Palette generator →