#3979BD#3979BD

#3979BD is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.124 H 252.1°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3979BD
RGB	rgb(57, 121, 189)
HSL	hsl(211, 54%, 48%)
HSV	hsv(211, 70%, 74%)
CMYK	cmyk(69.8%, 36%, 0%, 25.9%)
CIE-LAB	lab(49.76, 2.12, -41.66)
CIE-LCH	lch(49.76, 41.71, 272.92°)
OKLab	oklab(56.68% -0.0382 -0.1184)
OKLCH	oklch(56.68% 0.124 252.1)
XYZ	xyz(17.7066, 18.2168, 50.7173)
Luminance	0.1822 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979BD #BD7D39

analogous

#39BBBD #3979BD #3B39BD

triadic

#3979BD #BD3979 #79BD39

tetradic

#3979BD #BD39BB #BD7D39 #39BD3B

square

#3979BD #BD39BB #BD7D39 #39BD3B

split-complementary

#3979BD #BD3B39 #BBBD39

monochromatic

#1D3D5F #2B5B8E #3979BD #6398D0 #92B7DE

Accessibility & contrast

On white

4.52

#3979BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3979BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979BD

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979BD	#FFFFFF	#000000	##000000
##3979BD	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A7DC0

Deuteranopia (green-blind)

#4771BC

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3979bd;
/* rgb */ color: rgb(57, 121, 189);
/* oklch */ color: oklch(56.7% 0.124 252.1);

Tailwind

colors: {
  custom: {
    50: '#7f9fd1',
    500: '#3979bd',
    950: '#000000',
  },
}

SCSS

$custom: #3979bd;
$custom-light: #7f9fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3979bd",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 189
  },
  "hsl": {
    "h": 210.909,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.56678,
    "c": 0.1244,
    "h": 252.1
  },
  "luminance": 0.18219
}

Semantic roles & 50–950 ramp

primary

#3979BD

secondary

#C9AA89

accent

#964BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3979BD

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

Preview Lab → · Contrast checker → · Palette generator →