#42597C#42597C

#42597C is a mid, moderate blue. Relative luminance 0.098; OKLCH L 46.1% C 0.064 H 258.6°. Best body text is #FFFFFF at 7.11:1 contrast (WCAG AA passes).

Color values

HEX	#42597C
RGB	rgb(66, 89, 124)
HSL	hsl(216, 31%, 37%)
HSV	hsv(216, 47%, 49%)
CMYK	cmyk(46.8%, 28.2%, 0%, 51.4%)
CIE-LAB	lab(37.40, 1.49, -22.46)
CIE-LCH	lch(37.40, 22.51, 273.80°)
OKLab	oklab(46.07% -0.0127 -0.0627)
OKLCH	oklch(46.07% 0.064 258.6)
XYZ	xyz(9.4560, 9.7577, 20.4500)
Luminance	0.0976 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42597C #7C6542

analogous

#42767C #42597C #48427C

triadic

#42597C #7C4259 #597C42

tetradic

#42597C #7C4276 #7C6542 #427C48

square

#42597C #7C4276 #7C6542 #427C48

split-complementary

#42597C #7C4842 #767C42

monochromatic

#17202C #2D3C54 #42597C #5776A4 #7E96BA

Accessibility & contrast

On white

7.11

#42597C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#42597C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42597C

7.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42597C	#FFFFFF	#000000	##FFFFFF
##42597C	1.00	7.11	2.95	7.11
#FFFFFF	7.11	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5B7E

Deuteranopia (green-blind)

#45567B

Tritanopia (blue-blind)

#2C6165

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #42597c;
/* rgb */ color: rgb(66, 89, 124);
/* oklch */ color: oklch(46.1% 0.064 258.6);

Tailwind

colors: {
  custom: {
    50: '#7987a2',
    500: '#42597c',
    950: '#000000',
  },
}

SCSS

$custom: #42597c;
$custom-light: #7987a2;
$custom-dark: #000000;

JSON

{
  "hex": "#42597c",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 124
  },
  "hsl": {
    "h": 216.207,
    "s": 30.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.46065,
    "c": 0.064,
    "h": 258.6
  },
  "luminance": 0.09758
}

Semantic roles & 50–950 ramp

primary

#42597C

secondary

#A59275

accent

#9E61C7

background

#F7F8F9

surface

#EEEFF2

border

#C9CACC

text

#090B0F

muted

#7B7C7E

Preview Lab

Preview with #42597C

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

Preview Lab → · Contrast checker → · Palette generator →