#42597E#42597E

#42597E is a mid, moderate blue. Relative luminance 0.098; OKLCH L 46.2% C 0.067 H 259.7°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#42597E
RGB	rgb(66, 89, 126)
HSL	hsl(217, 31%, 38%)
HSV	hsv(217, 48%, 49%)
CMYK	cmyk(47.6%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(37.50, 2.13, -23.54)
CIE-LCH	lch(37.50, 23.64, 275.17°)
OKLab	oklab(46.17% -0.012 -0.0659)
OKLCH	oklch(46.17% 0.067 259.7)
XYZ	xyz(9.5838, 9.8088, 21.1229)
Luminance	0.0981 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42597E #7E6742

analogous

#42777E #42597E #49427E

triadic

#42597E #7E4259 #597E42

tetradic

#42597E #7E4277 #7E6742 #427E49

square

#42597E #7E4277 #7E6742 #427E49

split-complementary

#42597E #7E4942 #777E42

monochromatic

#18202E #2D3D56 #42597E #5775A6 #7F96BC

Accessibility & contrast

On white

7.09

#42597E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#42597E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42597E

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42597E	#FFFFFF	#000000	##FFFFFF
##42597E	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5B80

Deuteranopia (green-blind)

#44567D

Tritanopia (blue-blind)

#2A6166

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #42597e;
/* rgb */ color: rgb(66, 89, 126);
/* oklch */ color: oklch(46.2% 0.067 259.7);

Tailwind

colors: {
  custom: {
    50: '#7a87a3',
    500: '#42597e',
    950: '#000000',
  },
}

SCSS

$custom: #42597e;
$custom-light: #7a87a3;
$custom-dark: #000000;

JSON

{
  "hex": "#42597e",
  "rgb": {
    "r": 66,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 217,
    "s": 31.25,
    "l": 37.647
  },
  "oklch": {
    "l": 0.46169,
    "c": 0.06694,
    "h": 259.7
  },
  "luminance": 0.09809
}

Semantic roles & 50–950 ramp

primary

#42597E

secondary

#A79475

accent

#A060C7

background

#F7F8FA

surface

#EEEFF4

border

#C9CACE

text

#090B0F

muted

#7B7C7F

Preview Lab

Preview with #42597E

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

Preview Lab → · Contrast checker → · Palette generator →