#42839A#42839A

#42839A is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.6% C 0.075 H 223.6°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#42839A
RGB	rgb(66, 131, 154)
HSL	hsl(196, 40%, 43%)
HSV	hsv(196, 57%, 60%)
CMYK	cmyk(57.1%, 14.9%, 0%, 39.6%)
CIE-LAB	lab(51.52, -13.86, -18.63)
CIE-LCH	lch(51.52, 23.22, 233.35°)
OKLab	oklab(57.65% -0.0543 -0.0517)
OKLCH	oklch(57.65% 0.075 223.6)
XYZ	xyz(16.1935, 19.7224, 33.5190)
Luminance	0.1972 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42839A #9A5942

analogous

#429A85 #42839A #42579A

triadic

#42839A #9A4283 #839A42

tetradic

#42839A #85429A #9A5942 #579A42

square

#42839A #85429A #9A5942 #579A42

split-complementary

#42839A #9A4257 #9A8542

monochromatic

#1D3A44 #305F6F #42839A #5FA2BA #8ABBCD

Accessibility & contrast

On white

4.25

#42839A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#42839A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42839A

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42839A	#FFFFFF	#000000	##000000
##42839A	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76809B

Deuteranopia (green-blind)

#69779A

Tritanopia (blue-blind)

#008A8A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #42839a;
/* rgb */ color: rgb(66, 131, 154);
/* oklch */ color: oklch(57.6% 0.075 223.6);

Tailwind

colors: {
  custom: {
    50: '#7ea7b7',
    500: '#42839a',
    950: '#000000',
  },
}

SCSS

$custom: #42839a;
$custom-light: #7ea7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#42839a",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 154
  },
  "hsl": {
    "h": 195.682,
    "s": 40,
    "l": 43.137
  },
  "oklch": {
    "l": 0.57649,
    "c": 0.07502,
    "h": 223.6
  },
  "luminance": 0.19724
}

Semantic roles & 50–950 ramp

primary

#42839A

secondary

#B88F80

accent

#7758D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #42839A

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

Preview Lab → · Contrast checker → · Palette generator →