#3F79BA#3F79BA

#3F79BA is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.7% C 0.118 H 252.9°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3F79BA
RGB	rgb(63, 121, 186)
HSL	hsl(212, 49%, 49%)
HSV	hsv(212, 66%, 73%)
CMYK	cmyk(66.1%, 34.9%, 0%, 27.1%)
CIE-LAB	lab(49.83, 2.04, -39.81)
CIE-LCH	lch(49.83, 39.86, 272.93°)
OKLab	oklab(56.74% -0.0347 -0.1129)
OKLCH	oklch(56.74% 0.118 252.9)
XYZ	xyz(17.7470, 18.2749, 49.0370)
Luminance	0.1828 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F79BA #BA803F

analogous

#3FB7BA #3F79BA #423FBA

triadic

#3F79BA #BA3F79 #79BA3F

tetradic

#3F79BA #BA3FB7 #BA803F #3FBA42

square

#3F79BA #BA3FB7 #BA803F #3FBA42

split-complementary

#3F79BA #BA423F #B7BA3F

monochromatic

#203E5F #305B8C #3F79BA #6A98CC #97B8DC

Accessibility & contrast

On white

4.51

#3F79BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3F79BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F79BA

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F79BA	#FFFFFF	#000000	##000000
##3F79BA	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBD

Deuteranopia (green-blind)

#4B71B9

Tritanopia (blue-blind)

#008891

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f79ba;
/* rgb */ color: rgb(63, 121, 186);
/* oklch */ color: oklch(56.7% 0.118 252.9);

Tailwind

colors: {
  custom: {
    50: '#819fcf',
    500: '#3f79ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f79ba;
$custom-light: #819fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f79ba",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 186
  },
  "hsl": {
    "h": 211.707,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.56744,
    "c": 0.11811,
    "h": 252.9
  },
  "luminance": 0.18277
}

Semantic roles & 50–950 ramp

primary

#3F79BA

secondary

#C8AC8D

accent

#984FD9

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3F79BA

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

Preview Lab → · Contrast checker → · Palette generator →