#4042CF#4042CF

#4042CF is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.4% C 0.211 H 274.2°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#4042CF
RGB	rgb(64, 66, 207)
HSL	hsl(239, 60%, 53%)
HSV	hsv(239, 69%, 81%)
CMYK	cmyk(69.1%, 68.1%, 0%, 18.8%)
CIE-LAB	lab(36.91, 44.05, -72.78)
CIE-LCH	lch(36.91, 85.08, 301.18°)
OKLab	oklab(47.45% 0.0156 -0.2103)
OKLCH	oklch(47.45% 0.211 274.2)
XYZ	xyz(15.3213, 9.4900, 60.0437)
Luminance	0.0949 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4042CF #CFCD40

analogous

#4089CF #4042CF #8540CF

triadic

#4042CF #CF4042 #42CF40

tetradic

#4042CF #CF4089 #CFCD40 #40CF85

square

#4042CF #CF4089 #CFCD40 #40CF85

split-complementary

#4042CF #CF8540 #89CF40

monochromatic

#1E1F77 #2A2CA8 #4042CF #7172DB #A2A3E8

Accessibility & contrast

On white

7.25

#4042CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#4042CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4042CF

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4042CF	#FFFFFF	#000000	##FFFFFF
##4042CF	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)

#005DD3

Deuteranopia (green-blind)

#0050CC

Tritanopia (blue-blind)

#006883

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4042cf;
/* rgb */ color: rgb(64, 66, 207);
/* oklch */ color: oklch(47.4% 0.211 274.2);

Tailwind

colors: {
  custom: {
    50: '#8877df',
    500: '#4042cf',
    950: '#000000',
  },
}

SCSS

$custom: #4042cf;
$custom-light: #8877df;
$custom-dark: #000000;

JSON

{
  "hex": "#4042cf",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 207
  },
  "hsl": {
    "h": 239.161,
    "s": 59.833,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47446,
    "c": 0.21089,
    "h": 274.2
  },
  "luminance": 0.09491
}

Semantic roles & 50–950 ramp

primary

#4042CF

secondary

#D4D397

accent

#E145E3

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4042CF

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

Preview Lab → · Contrast checker → · Palette generator →