#42528D#42528D

#42528D is a mid, moderate blue. Relative luminance 0.091; OKLCH L 45.4% C 0.098 H 270.6°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#42528D
RGB	rgb(66, 82, 141)
HSL	hsl(227, 36%, 41%)
HSV	hsv(227, 53%, 55%)
CMYK	cmyk(53.2%, 41.8%, 0%, 44.7%)
CIE-LAB	lab(36.21, 11.57, -34.74)
CIE-LCH	lch(36.21, 36.62, 288.42°)
OKLab	oklab(45.42% 0.0011 -0.0984)
OKLCH	oklch(45.42% 0.098 270.6)
XYZ	xyz(10.0702, 9.1153, 26.4229)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42528D #8D7D42

analogous

#42778D #42528D #57428D

triadic

#42528D #8D4252 #528D42

tetradic

#42528D #8D4277 #8D7D42 #428D57

square

#42528D #8D4277 #8D7D42 #428D57

split-complementary

#42528D #8D5742 #778D42

monochromatic

#1B223A #2E3A63 #42528D #5A6DB2 #8492C5

Accessibility & contrast

On white

7.44

#42528D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#42528D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42528D

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42528D	#FFFFFF	#000000	##FFFFFF
##42528D	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A598F

Deuteranopia (green-blind)

#32528C

Tritanopia (blue-blind)

#205F68

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #42528d;
/* rgb */ color: rgb(66, 82, 141);
/* oklch */ color: oklch(45.4% 0.098 270.6);

Tailwind

colors: {
  custom: {
    50: '#7c82ae',
    500: '#42528d',
    950: '#000000',
  },
}

SCSS

$custom: #42528d;
$custom-light: #7c82ae;
$custom-dark: #000000;

JSON

{
  "hex": "#42528d",
  "rgb": {
    "r": 66,
    "g": 82,
    "b": 141
  },
  "hsl": {
    "h": 227.2,
    "s": 36.232,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45422,
    "c": 0.09845,
    "h": 270.6
  },
  "luminance": 0.09116
}

Semantic roles & 50–950 ramp

primary

#42528D

secondary

#B0A57B

accent

#B45CCC

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #42528D

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

Preview Lab → · Contrast checker → · Palette generator →