#3979B7#3979B7

#3979B7 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.117 H 250.0°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3979B7
RGB	rgb(57, 121, 183)
HSL	hsl(210, 53%, 47%)
HSV	hsv(210, 69%, 72%)
CMYK	cmyk(68.9%, 33.9%, 0%, 28.2%)
CIE-LAB	lab(49.45, -0.02, -38.69)
CIE-LCH	lch(49.45, 38.69, 269.97°)
OKLab	oklab(56.34% -0.0399 -0.1097)
OKLCH	oklch(56.34% 0.117 250)
XYZ	xyz(17.0688, 17.9617, 47.3580)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979B7 #B77739

analogous

#39B7B6 #3979B7 #393AB7

triadic

#3979B7 #B73979 #79B739

tetradic

#3979B7 #B639B7 #B77739 #3AB739

square

#3979B7 #B639B7 #B77739 #3AB739

split-complementary

#3979B7 #B7393A #B7B639

monochromatic

#1C3B5A #2A5A88 #3979B7 #6097CD #8EB6DC

Accessibility & contrast

On white

4.57

#3979B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#3979B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979B7

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979B7	#FFFFFF	#000000	##000000
##3979B7	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7CBA

Deuteranopia (green-blind)

#4C70B6

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3979b7;
/* rgb */ color: rgb(57, 121, 183);
/* oklch */ color: oklch(56.3% 0.117 250.0);

Tailwind

colors: {
  custom: {
    50: '#7e9fcd',
    500: '#3979b7',
    950: '#000000',
  },
}

SCSS

$custom: #3979b7;
$custom-light: #7e9fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3979b7",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 183
  },
  "hsl": {
    "h": 209.524,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56335,
    "c": 0.11672,
    "h": 250
  },
  "luminance": 0.17963
}

Semantic roles & 50–950 ramp

primary

#3979B7

secondary

#C7A585

accent

#934CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3979B7

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

Preview Lab → · Contrast checker → · Palette generator →