#42779B#42779B

#42779B is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.8% C 0.080 H 240.1°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#42779B
RGB	rgb(66, 119, 155)
HSL	hsl(204, 40%, 43%)
HSV	hsv(204, 57%, 61%)
CMYK	cmyk(57.4%, 23.2%, 0%, 39.2%)
CIE-LAB	lab(47.90, -6.70, -24.78)
CIE-LCH	lch(47.90, 25.67, 254.87°)
OKLab	oklab(54.78% -0.0398 -0.0693)
OKLCH	oklch(54.78% 0.08 240.1)
XYZ	xyz(14.7578, 16.7172, 33.4530)
Luminance	0.1672 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42779B #9B6642

analogous

#429B92 #42779B #424A9B

triadic

#42779B #9B4277 #779B42

tetradic

#42779B #92429B #9B6642 #4A9B42

square

#42779B #92429B #9B6642 #4A9B42

split-complementary

#42779B #9B424A #9B9242

monochromatic

#1D3545 #305670 #42779B #5F96BB #8AB2CD

Accessibility & contrast

On white

4.83

#42779B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#42779B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42779B

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42779B	#FFFFFF	#000000	##FFFFFF
##42779B	1.00	4.83	4.34	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67779D

Deuteranopia (green-blind)

#5B6E9A

Tritanopia (blue-blind)

#008083

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #42779b;
/* rgb */ color: rgb(66, 119, 155);
/* oklch */ color: oklch(54.8% 0.080 240.1);

Tailwind

colors: {
  custom: {
    50: '#7e9eb8',
    500: '#42779b',
    950: '#000000',
  },
}

SCSS

$custom: #42779b;
$custom-light: #7e9eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#42779b",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 155
  },
  "hsl": {
    "h": 204.27,
    "s": 40.271,
    "l": 43.333
  },
  "oklch": {
    "l": 0.54784,
    "c": 0.07995,
    "h": 240.1
  },
  "luminance": 0.16718
}

Semantic roles & 50–950 ramp

primary

#42779B

secondary

#B89781

accent

#8858D0

background

#F8F9FB

surface

#EFF2F6

border

#CACCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #42779B

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

Preview Lab → · Contrast checker → · Palette generator →