#4143CC#4143CC

#4143CC is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.4% C 0.206 H 274.6°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#4143CC
RGB	rgb(65, 67, 204)
HSL	hsl(239, 58%, 53%)
HSV	hsv(239, 68%, 80%)
CMYK	cmyk(68.1%, 67.2%, 0%, 20%)
CIE-LAB	lab(36.92, 42.58, -71.02)
CIE-LCH	lch(36.92, 82.81, 300.94°)
OKLab	oklab(47.39% 0.0165 -0.2051)
OKLCH	oklch(47.39% 0.206 274.6)
XYZ	xyz(15.0826, 9.4964, 58.1532)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.08

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4143CC #CCCA41

analogous

#4188CC #4143CC #8541CC

triadic

#4143CC #CC4143 #43CC41

tetradic

#4143CC #CC4188 #CCCA41 #41CC85

square

#4143CC #CC4188 #CCCA41 #41CC85

split-complementary

#4143CC #CC8541 #88CC41

monochromatic

#1F2074 #2C2EA4 #4143CC #7173D9 #A1A2E6

Accessibility & contrast

On white

7.24

#4143CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#4143CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4143CC

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4143CC	#FFFFFF	#000000	##FFFFFF
##4143CC	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DD0

Deuteranopia (green-blind)

#0050C9

Tritanopia (blue-blind)

#006882

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4143cc;
/* rgb */ color: rgb(65, 67, 204);
/* oklch */ color: oklch(47.4% 0.206 274.6);

Tailwind

colors: {
  custom: {
    50: '#8778dd',
    500: '#4143cc',
    950: '#000000',
  },
}

SCSS

$custom: #4143cc;
$custom-light: #8778dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4143cc",
  "rgb": {
    "r": 65,
    "g": 67,
    "b": 204
  },
  "hsl": {
    "h": 239.137,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.47388,
    "c": 0.2058,
    "h": 274.6
  },
  "luminance": 0.09498
}

Semantic roles & 50–950 ramp

primary

#4143CC

secondary

#D3D296

accent

#DF47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4143CC

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

Preview Lab → · Contrast checker → · Palette generator →