#3979AC#3979AC

#3979AC is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.7% C 0.103 H 245.3°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3979AC
RGB	rgb(57, 121, 172)
HSL	hsl(207, 50%, 45%)
HSV	hsv(207, 67%, 67%)
CMYK	cmyk(66.9%, 29.7%, 0%, 32.5%)
CIE-LAB	lab(48.91, -3.89, -33.17)
CIE-LCH	lch(48.91, 33.39, 263.31°)
OKLab	oklab(55.73% -0.0431 -0.0936)
OKLCH	oklch(55.73% 0.103 245.3)
XYZ	xyz(15.9683, 17.5215, 41.5622)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979AC #AC6C39

analogous

#39ACA6 #3979AC #393FAC

triadic

#3979AC #AC3979 #79AC39

tetradic

#3979AC #A639AC #AC6C39 #3FAC39

square

#3979AC #A639AC #AC6C39 #3FAC39

split-complementary

#3979AC #AC393F #ACA639

monochromatic

#1B3850 #2A597E #3979AC #5A97C8 #88B4D8

Accessibility & contrast

On white

4.66

#3979AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3979AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3979AC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979AC	#FFFFFF	#000000	##FFFFFF
##3979AC	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627AAE

Deuteranopia (green-blind)

#536FAB

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3979ac;
/* rgb */ color: rgb(57, 121, 172);
/* oklch */ color: oklch(55.7% 0.103 245.3);

Tailwind

colors: {
  custom: {
    50: '#7c9fc5',
    500: '#3979ac',
    950: '#000000',
  },
}

SCSS

$custom: #3979ac;
$custom-light: #7c9fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3979ac",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 172
  },
  "hsl": {
    "h": 206.609,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.55734,
    "c": 0.10308,
    "h": 245.3
  },
  "luminance": 0.17523
}

Semantic roles & 50–950 ramp

primary

#3979AC

secondary

#C29D7F

accent

#8C4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3979AC

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

Preview Lab → · Contrast checker → · Palette generator →