#42789A#42789A

#42789A is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.0% C 0.078 H 238.1°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#42789A
RGB	rgb(66, 120, 154)
HSL	hsl(203, 40%, 43%)
HSV	hsv(203, 57%, 60%)
CMYK	cmyk(57.1%, 22.1%, 0%, 39.6%)
CIE-LAB	lab(48.16, -7.61, -23.79)
CIE-LCH	lch(48.16, 24.97, 252.27°)
OKLab	oklab(54.98% -0.0414 -0.0665)
OKLCH	oklch(54.98% 0.078 238.1)
XYZ	xyz(14.7938, 16.9230, 33.0524)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42789A #9A6442

analogous

#429A90 #42789A #424C9A

triadic

#42789A #9A4278 #789A42

tetradic

#42789A #90429A #9A6442 #4C9A42

square

#42789A #90429A #9A6442 #4C9A42

split-complementary

#42789A #9A424C #9A9042

monochromatic

#1D3544 #30576F #42789A #5F97BA #8AB3CD

Accessibility & contrast

On white

4.79

#42789A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#42789A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42789A

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42789A	#FFFFFF	#000000	##FFFFFF
##42789A	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68779C

Deuteranopia (green-blind)

#5C6E99

Tritanopia (blue-blind)

#008183

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #42789a;
/* rgb */ color: rgb(66, 120, 154);
/* oklch */ color: oklch(55.0% 0.078 238.1);

Tailwind

colors: {
  custom: {
    50: '#7d9eb8',
    500: '#42789a',
    950: '#000000',
  },
}

SCSS

$custom: #42789a;
$custom-light: #7d9eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#42789a",
  "rgb": {
    "r": 66,
    "g": 120,
    "b": 154
  },
  "hsl": {
    "h": 203.182,
    "s": 40,
    "l": 43.137
  },
  "oklch": {
    "l": 0.54977,
    "c": 0.07829,
    "h": 238.1
  },
  "luminance": 0.16924
}

Semantic roles & 50–950 ramp

primary

#42789A

secondary

#B89680

accent

#8658D0

background

#F8F9FB

surface

#EFF2F6

border

#CACCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #42789A

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

Preview Lab → · Contrast checker → · Palette generator →