#4042CD#4042CD

#4042CD is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.3% C 0.208 H 274.4°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#4042CD
RGB	rgb(64, 66, 205)
HSL	hsl(239, 59%, 53%)
HSV	hsv(239, 69%, 80%)
CMYK	cmyk(68.8%, 67.8%, 0%, 19.6%)
CIE-LAB	lab(36.73, 43.39, -71.92)
CIE-LCH	lch(36.73, 84.00, 301.10°)
OKLab	oklab(47.26% 0.0158 -0.2078)
OKLCH	oklch(47.26% 0.208 274.4)
XYZ	xyz(15.0784, 9.3928, 58.7641)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.07

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4042CD #CDCB40

analogous

#4088CD #4042CD #8440CD

triadic

#4042CD #CD4042 #42CD40

tetradic

#4042CD #CD4088 #CDCB40 #40CD84

square

#4042CD #CD4088 #CDCB40 #40CD84

split-complementary

#4042CD #CD8440 #88CD40

monochromatic

#1E2074 #2B2DA5 #4042CD #7172DA #A1A2E6

Accessibility & contrast

On white

7.29

#4042CD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#4042CD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042CD

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042CD	#FFFFFF	#000000	##FFFFFF
##4042CD	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD1

Deuteranopia (green-blind)

#0050CA

Tritanopia (blue-blind)

#006782

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4042cd;
/* rgb */ color: rgb(64, 66, 205);
/* oklch */ color: oklch(47.3% 0.208 274.4);

Tailwind

colors: {
  custom: {
    50: '#8777dd',
    500: '#4042cd',
    950: '#000000',
  },
}

SCSS

$custom: #4042cd;
$custom-light: #8777dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4042cd",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 205
  },
  "hsl": {
    "h": 239.149,
    "s": 58.506,
    "l": 52.745
  },
  "oklch": {
    "l": 0.47259,
    "c": 0.2084,
    "h": 274.4
  },
  "luminance": 0.09394
}

Semantic roles & 50–950 ramp

primary

#4042CD

secondary

#D3D296

accent

#E046E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4042CD

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

Preview Lab → · Contrast checker → · Palette generator →