#42879C#42879C

#42879C is a mid, moderate cyan. Relative luminance 0.209; OKLCH L 58.7% C 0.076 H 220.4°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#42879C
RGB	rgb(66, 135, 156)
HSL	hsl(194, 41%, 44%)
HSV	hsv(194, 58%, 61%)
CMYK	cmyk(57.7%, 13.5%, 0%, 38.8%)
CIE-LAB	lab(52.82, -15.44, -17.80)
CIE-LCH	lch(52.82, 23.57, 229.06°)
OKLab	oklab(58.71% -0.0581 -0.0494)
OKLCH	oklch(58.71% 0.076 220.4)
XYZ	xyz(16.9091, 20.8849, 34.5861)
Luminance	0.2089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42879C #9C5742

analogous

#429C84 #42879C #425A9C

triadic

#42879C #9C4287 #879C42

tetradic

#42879C #84429C #9C5742 #5A9C42

square

#42879C #84429C #9C5742 #5A9C42

split-complementary

#42879C #9C425A #9C8442

monochromatic

#1E3D46 #306271 #42879C #60A6BC #8BBECE

Accessibility & contrast

On white

4.06

#42879C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#42879C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #42879C

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42879C	#FFFFFF	#000000	##000000
##42879C	1.00	4.06	5.18	5.18
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A849D

Deuteranopia (green-blind)

#6D7A9C

Tritanopia (blue-blind)

#008E8E

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #42879c;
/* rgb */ color: rgb(66, 135, 156);
/* oklch */ color: oklch(58.7% 0.076 220.4);

Tailwind

colors: {
  custom: {
    50: '#7eaab9',
    500: '#42879c',
    950: '#000000',
  },
}

SCSS

$custom: #42879c;
$custom-light: #7eaab9;
$custom-dark: #000000;

JSON

{
  "hex": "#42879c",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 156
  },
  "hsl": {
    "h": 194,
    "s": 40.541,
    "l": 43.529
  },
  "oklch": {
    "l": 0.58714,
    "c": 0.07631,
    "h": 220.4
  },
  "luminance": 0.20886
}

Semantic roles & 50–950 ramp

primary

#42879C

secondary

#B98E81

accent

#7457D0

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0B1011

muted

#7C7F80

Preview Lab

Preview with #42879C

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

Preview Lab → · Contrast checker → · Palette generator →