#3979B6#3979B6

#3979B6 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.3% C 0.115 H 249.7°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#3979B6
RGB	rgb(57, 121, 182)
HSL	hsl(209, 52%, 47%)
HSV	hsv(209, 69%, 71%)
CMYK	cmyk(68.7%, 33.5%, 0%, 28.6%)
CIE-LAB	lab(49.40, -0.37, -38.19)
CIE-LCH	lch(49.40, 38.19, 269.44°)
OKLab	oklab(56.28% -0.0401 -0.1082)
OKLCH	oklch(56.28% 0.115 249.7)
XYZ	xyz(16.9651, 17.9202, 46.8118)
Luminance	0.1792 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979B6 #B67639

analogous

#39B6B5 #3979B6 #393BB6

triadic

#3979B6 #B63979 #79B639

tetradic

#3979B6 #B539B6 #B67639 #3BB639

square

#3979B6 #B539B6 #B67639 #3BB639

split-complementary

#3979B6 #B6393B #B6B539

monochromatic

#1C3B59 #2A5A87 #3979B6 #5F97CD #8EB6DC

Accessibility & contrast

On white

4.58

#3979B6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3979B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979B6

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979B6	#FFFFFF	#000000	##000000
##3979B6	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7CB9

Deuteranopia (green-blind)

#4C70B5

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3979b6;
/* rgb */ color: rgb(57, 121, 182);
/* oklch */ color: oklch(56.3% 0.115 249.7);

Tailwind

colors: {
  custom: {
    50: '#7d9fcc',
    500: '#3979b6',
    950: '#000000',
  },
}

SCSS

$custom: #3979b6;
$custom-light: #7d9fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3979b6",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 182
  },
  "hsl": {
    "h": 209.28,
    "s": 52.301,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56279,
    "c": 0.11546,
    "h": 249.7
  },
  "luminance": 0.17922
}

Semantic roles & 50–950 ramp

primary

#3979B6

secondary

#C6A585

accent

#924CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3979B6

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

Preview Lab → · Contrast checker → · Palette generator →