#3979BA#3979BA

#3979BA is a mid, vivid cyan. Relative luminance 0.181; OKLCH L 56.5% C 0.121 H 251.1°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#3979BA
RGB	rgb(57, 121, 186)
HSL	hsl(210, 53%, 48%)
HSV	hsv(210, 69%, 73%)
CMYK	cmyk(69.4%, 34.9%, 0%, 27.1%)
CIE-LAB	lab(49.60, 1.05, -40.18)
CIE-LCH	lch(49.60, 40.19, 271.50°)
OKLab	oklab(56.51% -0.039 -0.114)
OKLCH	oklch(56.51% 0.121 251.1)
XYZ	xyz(17.3843, 18.0879, 49.0200)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979BA #BA7A39

analogous

#39B9BA #3979BA #3A39BA

triadic

#3979BA #BA3979 #79BA39

tetradic

#3979BA #BA39B9 #BA7A39 #39BA3A

square

#3979BA #BA39B9 #BA7A39 #39BA3A

split-complementary

#3979BA #BA3A39 #B9BA39

monochromatic

#1C3C5C #2B5B8B #3979BA #6198CF #90B6DD

Accessibility & contrast

On white

4.55

#3979BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#3979BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979BA

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979BA	#FFFFFF	#000000	##000000
##3979BA	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBD

Deuteranopia (green-blind)

#4A70B9

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3979ba;
/* rgb */ color: rgb(57, 121, 186);
/* oklch */ color: oklch(56.5% 0.121 251.1);

Tailwind

colors: {
  custom: {
    50: '#7e9fcf',
    500: '#3979ba',
    950: '#000000',
  },
}

SCSS

$custom: #3979ba;
$custom-light: #7e9fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3979ba",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 186
  },
  "hsl": {
    "h": 210.233,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56505,
    "c": 0.12055,
    "h": 251.1
  },
  "luminance": 0.1809
}

Semantic roles & 50–950 ramp

primary

#3979BA

secondary

#C8A887

accent

#944BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3979BA

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

Preview Lab → · Contrast checker → · Palette generator →