#42789E#42789E

#42789E is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.2% C 0.083 H 241.1°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#42789E
RGB	rgb(66, 120, 158)
HSL	hsl(205, 41%, 44%)
HSV	hsv(205, 58%, 62%)
CMYK	cmyk(58.2%, 24.1%, 0%, 38%)
CIE-LAB	lab(48.33, -6.31, -25.87)
CIE-LCH	lch(48.33, 26.63, 256.30°)
OKLab	oklab(55.17% -0.04 -0.0724)
OKLCH	oklch(55.17% 0.083 241.1)
XYZ	xyz(15.1325, 17.0585, 34.8363)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42789E #9E6842

analogous

#429E96 #42789E #424A9E

triadic

#42789E #9E4278 #789E42

tetradic

#42789E #96429E #9E6842 #4A9E42

square

#42789E #96429E #9E6842 #4A9E42

split-complementary

#42789E #9E424A #9E9642

monochromatic

#1E3648 #305773 #42789E #6097BD #8CB3CF

Accessibility & contrast

On white

4.76

#42789E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#42789E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42789E

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42789E	#FFFFFF	#000000	##FFFFFF
##42789E	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6778A0

Deuteranopia (green-blind)

#5B6F9D

Tritanopia (blue-blind)

#008185

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #42789e;
/* rgb */ color: rgb(66, 120, 158);
/* oklch */ color: oklch(55.2% 0.083 241.1);

Tailwind

colors: {
  custom: {
    50: '#7e9eba',
    500: '#42789e',
    950: '#000000',
  },
}

SCSS

$custom: #42789e;
$custom-light: #7e9eba;
$custom-dark: #000000;

JSON

{
  "hex": "#42789e",
  "rgb": {
    "r": 66,
    "g": 120,
    "b": 158
  },
  "hsl": {
    "h": 204.783,
    "s": 41.071,
    "l": 43.922
  },
  "oklch": {
    "l": 0.55169,
    "c": 0.08273,
    "h": 241.1
  },
  "luminance": 0.1706
}

Semantic roles & 50–950 ramp

primary

#42789E

secondary

#BA9982

accent

#8957D1

background

#F8F9FB

surface

#EFF2F6

border

#CACCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #42789E

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

Preview Lab → · Contrast checker → · Palette generator →