#42547F#42547F

#42547F is a mid, moderate blue. Relative luminance 0.090; OKLCH L 45.1% C 0.074 H 266.2°. Best body text is #FFFFFF at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#42547F
RGB	rgb(66, 84, 127)
HSL	hsl(222, 32%, 38%)
HSV	hsv(222, 48%, 50%)
CMYK	cmyk(48%, 33.9%, 0%, 50.2%)
CIE-LAB	lab(36.04, 5.64, -26.43)
CIE-LCH	lch(36.04, 27.02, 282.04°)
OKLab	oklab(45.05% -0.005 -0.0742)
OKLCH	oklch(45.05% 0.074 266.2)
XYZ	xyz(9.2466, 9.0306, 21.3304)
Luminance	0.0903 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42547F #7F6D42

analogous

#42727F #42547F #4E427F

triadic

#42547F #7F4254 #547F42

tetradic

#42547F #7F4272 #7F6D42 #427F4E

square

#42547F #7F4272 #7F6D42 #427F4E

split-complementary

#42547F #7F4E42 #727F42

monochromatic

#181F2E #2D3957 #42547F #576FA7 #7F91BC

Accessibility & contrast

On white

7.48

#42547F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#42547F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42547F

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42547F	#FFFFFF	#000000	##FFFFFF
##42547F	1.00	7.48	2.81	7.48
#FFFFFF	7.48	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445881

Deuteranopia (green-blind)

#3E527E

Tritanopia (blue-blind)

#2B5D63

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #42547f;
/* rgb */ color: rgb(66, 84, 127);
/* oklch */ color: oklch(45.1% 0.074 266.2);

Tailwind

colors: {
  custom: {
    50: '#7a83a4',
    500: '#42547f',
    950: '#000000',
  },
}

SCSS

$custom: #42547f;
$custom-light: #7a83a4;
$custom-dark: #000000;

JSON

{
  "hex": "#42547f",
  "rgb": {
    "r": 66,
    "g": 84,
    "b": 127
  },
  "hsl": {
    "h": 222.295,
    "s": 31.606,
    "l": 37.843
  },
  "oklch": {
    "l": 0.45052,
    "c": 0.07437,
    "h": 266.2
  },
  "luminance": 0.09031
}

Semantic roles & 50–950 ramp

primary

#42547F

secondary

#A79975

accent

#A960C8

background

#F7F8FA

surface

#EEEFF4

border

#C9CACE

text

#090A0F

muted

#7B7C7F

Preview Lab

Preview with #42547F

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

Preview Lab → · Contrast checker → · Palette generator →