#42498F#42498F

#42498F is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.6% C 0.114 H 276.3°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#42498F
RGB	rgb(66, 73, 143)
HSL	hsl(235, 37%, 41%)
HSV	hsv(235, 54%, 56%)
CMYK	cmyk(53.8%, 49%, 0%, 43.9%)
CIE-LAB	lab(33.79, 18.14, -39.82)
CIE-LCH	lch(33.79, 43.75, 294.50°)
OKLab	oklab(43.62% 0.0125 -0.1134)
OKLCH	oklch(43.62% 0.114 276.3)
XYZ	xyz(9.5857, 7.9059, 27.0022)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42498F #8F8842

analogous

#426F8F #42498F #61428F

triadic

#42498F #8F4249 #498F42

tetradic

#42498F #8F426F #8F8842 #428F61

square

#42498F #8F426F #8F8842 #428F61

split-complementary

#42498F #8F6142 #6F8F42

monochromatic

#1B1E3B #2F3465 #42498F #5B63B3 #858BC7

Accessibility & contrast

On white

8.14

#42498F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#42498F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42498F

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42498F	#FFFFFF	#000000	##FFFFFF
##42498F	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295392

Deuteranopia (green-blind)

#204C8D

Tritanopia (blue-blind)

#205865

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #42498f;
/* rgb */ color: rgb(66, 73, 143);
/* oklch */ color: oklch(43.6% 0.114 276.3);

Tailwind

colors: {
  custom: {
    50: '#7c7bb0',
    500: '#42498f',
    950: '#000000',
  },
}

SCSS

$custom: #42498f;
$custom-light: #7c7bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#42498f",
  "rgb": {
    "r": 66,
    "g": 73,
    "b": 143
  },
  "hsl": {
    "h": 234.545,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.43616,
    "c": 0.11409,
    "h": 276.3
  },
  "luminance": 0.07907
}

Semantic roles & 50–950 ramp

primary

#42498F

secondary

#B1AC7B

accent

#C25BCD

background

#F7F7FA

surface

#EEEDF5

border

#C9C8CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #42498F

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

Preview Lab → · Contrast checker → · Palette generator →