#1F79B4#1F79B4

#1F79B4 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.4% C 0.122 H 243.3°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#1F79B4
RGB	rgb(31, 121, 180)
HSL	hsl(204, 71%, 41%)
HSV	hsv(204, 83%, 71%)
CMYK	cmyk(82.8%, 32.8%, 0%, 29.4%)
CIE-LAB	lab(48.59, -4.41, -38.37)
CIE-LCH	lch(48.59, 38.62, 263.44°)
OKLab	oklab(55.4% -0.0549 -0.109)
OKLCH	oklch(55.4% 0.122 243.3)
XYZ	xyz(15.6374, 17.2594, 45.6784)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F79B4 #B45A1F

analogous

#1FB4A5 #1F79B4 #1F2FB4

triadic

#1F79B4 #B41F79 #79B41F

tetradic

#1F79B4 #A51FB4 #B45A1F #2FB41F

square

#1F79B4 #A51FB4 #B45A1F #2FB41F

split-complementary

#1F79B4 #B41F2F #B4A51F

monochromatic

#0D334C #165680 #1F79B4 #349ADC #68B4E5

Accessibility & contrast

On white

4.72

#1F79B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#1F79B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F79B4

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F79B4	#FFFFFF	#000000	##FFFFFF
##1F79B4	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7BB7

Deuteranopia (green-blind)

#486DB3

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #1f79b4;
/* rgb */ color: rgb(31, 121, 180);
/* oklch */ color: oklch(55.4% 0.122 243.3);

Tailwind

colors: {
  custom: {
    50: '#749fcb',
    500: '#1f79b4',
    950: '#000000',
  },
}

SCSS

$custom: #1f79b4;
$custom-light: #749fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f79b4",
  "rgb": {
    "r": 31,
    "g": 121,
    "b": 180
  },
  "hsl": {
    "h": 203.758,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55403,
    "c": 0.12205,
    "h": 243.3
  },
  "luminance": 0.17261
}

Semantic roles & 50–950 ramp

primary

#1F79B4

secondary

#CB8D64

accent

#813AED

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #1F79B4

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

Preview Lab → · Contrast checker → · Palette generator →