#42738C#42738C

#42738C is a mid, moderate cyan. Relative luminance 0.153; OKLCH L 53.1% C 0.066 H 232.1°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#42738C
RGB	rgb(66, 115, 140)
HSL	hsl(200, 36%, 40%)
HSV	hsv(200, 53%, 55%)
CMYK	cmyk(52.9%, 17.9%, 0%, 45.1%)
CIE-LAB	lab(46.06, -9.16, -18.76)
CIE-LCH	lch(46.06, 20.88, 243.98°)
OKLab	oklab(53.12% -0.0406 -0.0521)
OKLCH	oklch(53.12% 0.066 232.1)
XYZ	xyz(13.1094, 15.3121, 27.0706)
Luminance	0.1531 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42738C #8C5B42

analogous

#428C80 #42738C #424E8C

triadic

#42738C #8C4273 #738C42

tetradic

#42738C #80428C #8C5B42 #4E8C42

square

#42738C #80428C #8C5B42 #4E8C42

split-complementary

#42738C #8C424E #8C8042

monochromatic

#1B2F39 #2E5162 #42738C #5A94B1 #84AFC5

Accessibility & contrast

On white

5.17

#42738C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#42738C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #42738C

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42738C	#FFFFFF	#000000	##FFFFFF
##42738C	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#67728D

Deuteranopia (green-blind)

#5C6A8C

Tritanopia (blue-blind)

#177A7B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #42738c;
/* rgb */ color: rgb(66, 115, 140);
/* oklch */ color: oklch(53.1% 0.066 232.1);

Tailwind

colors: {
  custom: {
    50: '#7c9bad',
    500: '#42738c',
    950: '#000000',
  },
}

SCSS

$custom: #42738c;
$custom-light: #7c9bad;
$custom-dark: #000000;

JSON

{
  "hex": "#42738c",
  "rgb": {
    "r": 66,
    "g": 115,
    "b": 140
  },
  "hsl": {
    "h": 200.27,
    "s": 35.922,
    "l": 40.392
  },
  "oklch": {
    "l": 0.53118,
    "c": 0.06608,
    "h": 232.1
  },
  "luminance": 0.15313
}

Semantic roles & 50–950 ramp

primary

#42738C

secondary

#B08C7A

accent

#825CCC

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0E10

muted

#7C7E7F

Preview Lab

Preview with #42738C

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

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