#3979C5#3979C5

#3979C5 is a mid, vivid cyan. Relative luminance 0.186; OKLCH L 57.1% C 0.135 H 254.4°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3979C5
RGB	rgb(57, 121, 197)
HSL	hsl(213, 55%, 50%)
HSV	hsv(213, 71%, 77%)
CMYK	cmyk(71.1%, 38.6%, 0%, 22.7%)
CIE-LAB	lab(50.18, 5.00, -45.57)
CIE-LCH	lch(50.18, 45.85, 276.26°)
OKLab	oklab(57.15% -0.0362 -0.1298)
OKLCH	oklch(57.15% 0.135 254.4)
XYZ	xyz(18.5990, 18.5738, 55.4174)
Luminance	0.1858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979C5 #C58539

analogous

#39BFC5 #3979C5 #3F39C5

triadic

#3979C5 #C53979 #79C539

tetradic

#3979C5 #C539BF #C58539 #39C53F

square

#3979C5 #C539BF #C58539 #39C53F

split-complementary

#3979C5 #C53F39 #BFC539

monochromatic

#1E3F66 #2B5C96 #3979C5 #6899D3 #97B9E1

Accessibility & contrast

On white

4.45

#3979C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#3979C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979C5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979C5	#FFFFFF	#000000	##000000
##3979C5	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567EC8

Deuteranopia (green-blind)

#4171C3

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3979c5;
/* rgb */ color: rgb(57, 121, 197);
/* oklch */ color: oklch(57.1% 0.135 254.4);

Tailwind

colors: {
  custom: {
    50: '#809fd7',
    500: '#3979c5',
    950: '#000000',
  },
}

SCSS

$custom: #3979c5;
$custom-light: #809fd7;
$custom-dark: #000000;

JSON

{
  "hex": "#3979c5",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 197
  },
  "hsl": {
    "h": 212.571,
    "s": 55.118,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5715,
    "c": 0.1348,
    "h": 254.4
  },
  "luminance": 0.18576
}

Semantic roles & 50–950 ramp

primary

#3979C5

secondary

#CDB08D

accent

#9A49DE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3979C5

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

Preview Lab → · Contrast checker → · Palette generator →