#4043CA#4043CA

#4043CA is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.1% C 0.204 H 274.4°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#4043CA
RGB	rgb(64, 67, 202)
HSL	hsl(239, 57%, 52%)
HSV	hsv(239, 68%, 79%)
CMYK	cmyk(68.3%, 66.8%, 0%, 20.8%)
CIE-LAB	lab(36.68, 41.79, -70.26)
CIE-LCH	lch(36.68, 81.75, 300.74°)
OKLab	oklab(47.14% 0.0155 -0.2029)
OKLCH	oklch(47.14% 0.204 274.4)
XYZ	xyz(14.7786, 9.3672, 56.8949)
Luminance	0.0937 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.87

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4043CA #CAC740

analogous

#4088CA #4043CA #8240CA

triadic

#4043CA #CA4043 #43CA40

tetradic

#4043CA #CA4088 #CAC740 #40CA82

square

#4043CA #CA4088 #CAC740 #40CA82

split-complementary

#4043CA #CA8240 #88CA40

monochromatic

#1F2170 #2C2FA0 #4043CA #7072D7 #A0A1E5

Accessibility & contrast

On white

7.31

#4043CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#4043CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043CA

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043CA	#FFFFFF	#000000	##FFFFFF
##4043CA	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DCE

Deuteranopia (green-blind)

#0050C7

Tritanopia (blue-blind)

#006781

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4043ca;
/* rgb */ color: rgb(64, 67, 202);
/* oklch */ color: oklch(47.1% 0.204 274.4);

Tailwind

colors: {
  custom: {
    50: '#8778db',
    500: '#4043ca',
    950: '#000000',
  },
}

SCSS

$custom: #4043ca;
$custom-light: #8778db;
$custom-dark: #000000;

JSON

{
  "hex": "#4043ca",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 202
  },
  "hsl": {
    "h": 238.696,
    "s": 56.557,
    "l": 52.157
  },
  "oklch": {
    "l": 0.47143,
    "c": 0.20352,
    "h": 274.4
  },
  "luminance": 0.09369
}

Semantic roles & 50–950 ramp

primary

#4043CA

secondary

#D1D095

accent

#DD48E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4043CA

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

Preview Lab → · Contrast checker → · Palette generator →