#3979B8#3979B8

#3979B8 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.4% C 0.118 H 250.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3979B8
RGB	rgb(57, 121, 184)
HSL	hsl(210, 53%, 47%)
HSV	hsv(210, 69%, 72%)
CMYK	cmyk(69%, 34.2%, 0%, 27.8%)
CIE-LAB	lab(49.50, 0.34, -39.19)
CIE-LCH	lch(49.50, 39.19, 270.49°)
OKLab	oklab(56.39% -0.0396 -0.1111)
OKLCH	oklch(56.39% 0.118 250.4)
XYZ	xyz(17.1732, 18.0035, 47.9081)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3979B8 #B87839

analogous

#39B8B8 #3979B8 #3939B8

triadic

#3979B8 #B83979 #79B839

tetradic

#3979B8 #B839B8 #B87839 #39B839

square

#3979B8 #B839B8 #B87839 #39B839

split-complementary

#3979B8 #B83939 #B8B839

monochromatic

#1C3C5B #2B5A89 #3979B8 #6098CE #8FB6DC

Accessibility & contrast

On white

4.56

#3979B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3979B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3979B8

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3979B8	#FFFFFF	#000000	##000000
##3979B8	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7CBB

Deuteranopia (green-blind)

#4B70B7

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3979b8;
/* rgb */ color: rgb(57, 121, 184);
/* oklch */ color: oklch(56.4% 0.118 250.4);

Tailwind

colors: {
  custom: {
    50: '#7e9fcd',
    500: '#3979b8',
    950: '#000000',
  },
}

SCSS

$custom: #3979b8;
$custom-light: #7e9fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3979b8",
  "rgb": {
    "r": 57,
    "g": 121,
    "b": 184
  },
  "hsl": {
    "h": 209.764,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56391,
    "c": 0.11799,
    "h": 250.4
  },
  "luminance": 0.18005
}

Semantic roles & 50–950 ramp

primary

#3979B8

secondary

#C7A686

accent

#934CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3979B8

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

Preview Lab → · Contrast checker → · Palette generator →