#4243D2#4243D2

#4243D2 is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 48.0% C 0.213 H 274.6°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#4243D2
RGB	rgb(66, 67, 210)
HSL	hsl(240, 62%, 54%)
HSV	hsv(240, 69%, 82%)
CMYK	cmyk(68.6%, 68.1%, 0%, 17.6%)
CIE-LAB	lab(37.52, 44.69, -73.50)
CIE-LCH	lch(37.52, 86.02, 301.30°)
OKLab	oklab(48.01% 0.0169 -0.2124)
OKLCH	oklch(48.01% 0.213 274.6)
XYZ	xyz(15.8829, 9.8242, 62.0195)
Luminance	0.0983 (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

#4243D2 #D2D142

analogous

#428BD2 #4243D2 #8942D2

triadic

#4243D2 #D24243 #43D242

tetradic

#4243D2 #D2428B #D2D142 #42D289

square

#4243D2 #D2428B #D2D142 #42D289

split-complementary

#4243D2 #D28942 #8BD242

monochromatic

#1E1E7C #292AAD #4243D2 #7374DE #A5A5EA

Accessibility & contrast

On white

7.08

#4243D2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#4243D2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4243D2

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4243D2	#FFFFFF	#000000	##FFFFFF
##4243D2	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FD6

Deuteranopia (green-blind)

#0052CF

Tritanopia (blue-blind)

#006A85

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #4243d2;
/* rgb */ color: rgb(66, 67, 210);
/* oklch */ color: oklch(48.0% 0.213 274.6);

Tailwind

colors: {
  custom: {
    50: '#8978e1',
    500: '#4243d2',
    950: '#000000',
  },
}

SCSS

$custom: #4243d2;
$custom-light: #8978e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4243d2",
  "rgb": {
    "r": 66,
    "g": 67,
    "b": 210
  },
  "hsl": {
    "h": 239.583,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.48005,
    "c": 0.21304,
    "h": 274.6
  },
  "luminance": 0.09826
}

Semantic roles & 50–950 ramp

primary

#4243D2

secondary

#D7D699

accent

#E443E5

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4243D2

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

Preview Lab → · Contrast checker → · Palette generator →