#42519D#42519D

#42519D is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.3% C 0.124 H 272.3°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#42519D
RGB	rgb(66, 81, 157)
HSL	hsl(230, 41%, 44%)
HSV	hsv(230, 58%, 62%)
CMYK	cmyk(58%, 48.4%, 0%, 38.4%)
CIE-LAB	lab(36.89, 17.70, -43.33)
CIE-LCH	lch(36.89, 46.81, 292.22°)
OKLab	oklab(46.25% 0.005 -0.1236)
OKLCH	oklch(46.25% 0.124 272.3)
XYZ	xyz(11.2730, 9.4766, 33.1269)
Luminance	0.0948 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42519D #9D8E42

analogous

#427E9D #42519D #60429D

triadic

#42519D #9D4251 #519D42

tetradic

#42519D #9D427E #9D8E42 #429D60

square

#42519D #9D427E #9D8E42 #429D60

split-complementary

#42519D #9D6042 #7E9D42

monochromatic

#1E2547 #303B72 #42519D #606FBC #8B96CE

Accessibility & contrast

On white

7.25

#42519D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#42519D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42519D

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42519D	#FFFFFF	#000000	##FFFFFF
##42519D	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D5BA0

Deuteranopia (green-blind)

#1F539B

Tritanopia (blue-blind)

#06626F

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #42519d;
/* rgb */ color: rgb(66, 81, 157);
/* oklch */ color: oklch(46.3% 0.124 272.3);

Tailwind

colors: {
  custom: {
    50: '#7e81ba',
    500: '#42519d',
    950: '#000000',
  },
}

SCSS

$custom: #42519d;
$custom-light: #7e81ba;
$custom-dark: #000000;

JSON

{
  "hex": "#42519d",
  "rgb": {
    "r": 66,
    "g": 81,
    "b": 157
  },
  "hsl": {
    "h": 230.11,
    "s": 40.807,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46254,
    "c": 0.12375,
    "h": 272.3
  },
  "luminance": 0.09477
}

Semantic roles & 50–950 ramp

primary

#42519D

secondary

#B9B082

accent

#BD57D1

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #42519D

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

Preview Lab → · Contrast checker → · Palette generator →