#4043CE#4043CE

#4043CE is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.5% C 0.209 H 274.1°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#4043CE
RGB	rgb(64, 67, 206)
HSL	hsl(239, 59%, 53%)
HSV	hsv(239, 69%, 81%)
CMYK	cmyk(68.9%, 67.5%, 0%, 19.2%)
CIE-LAB	lab(37.04, 43.13, -71.99)
CIE-LCH	lch(37.04, 83.92, 300.92°)
OKLab	oklab(47.51% 0.0151 -0.208)
OKLCH	oklch(47.51% 0.209 274.1)
XYZ	xyz(15.2584, 9.5591, 59.4215)
Luminance	0.0956 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4043CE #CECB40

analogous

#408ACE #4043CE #8440CE

triadic

#4043CE #CE4043 #43CE40

tetradic

#4043CE #CE408A #CECB40 #40CE84

square

#4043CE #CE408A #CECB40 #40CE84

split-complementary

#4043CE #CE8440 #8ACE40

monochromatic

#1E2075 #2B2DA6 #4043CE #7173DA #A1A3E7

Accessibility & contrast

On white

7.21

#4043CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#4043CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4043CE

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4043CE	#FFFFFF	#000000	##FFFFFF
##4043CE	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED2

Deuteranopia (green-blind)

#0051CB

Tritanopia (blue-blind)

#006883

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4043ce;
/* rgb */ color: rgb(64, 67, 206);
/* oklch */ color: oklch(47.5% 0.209 274.1);

Tailwind

colors: {
  custom: {
    50: '#8778de',
    500: '#4043ce',
    950: '#000000',
  },
}

SCSS

$custom: #4043ce;
$custom-light: #8778de;
$custom-dark: #000000;

JSON

{
  "hex": "#4043ce",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 206
  },
  "hsl": {
    "h": 238.732,
    "s": 59.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.47511,
    "c": 0.20855,
    "h": 274.1
  },
  "luminance": 0.09561
}

Semantic roles & 50–950 ramp

primary

#4043CE

secondary

#D4D296

accent

#DF45E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4043CE

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

Preview Lab → · Contrast checker → · Palette generator →