#4143CE#4143CE

#4143CE is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.6% C 0.208 H 274.5°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#4143CE
RGB	rgb(65, 67, 206)
HSL	hsl(239, 59%, 53%)
HSV	hsv(239, 68%, 81%)
CMYK	cmyk(68.4%, 67.5%, 0%, 19.2%)
CIE-LAB	lab(37.10, 43.25, -71.89)
CIE-LCH	lch(37.10, 83.89, 301.03°)
OKLab	oklab(47.57% 0.0162 -0.2077)
OKLCH	oklch(47.57% 0.208 274.5)
XYZ	xyz(15.3240, 9.5929, 59.4246)
Luminance	0.0959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.20

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4143CE #CECC41

analogous

#4189CE #4143CE #8541CE

triadic

#4143CE #CE4143 #43CE41

tetradic

#4143CE #CE4189 #CECC41 #41CE85

square

#4143CE #CE4189 #CECC41 #41CE85

split-complementary

#4143CE #CE8541 #89CE41

monochromatic

#1E2076 #2B2DA7 #4143CE #7273DB #A2A3E7

Accessibility & contrast

On white

7.19

#4143CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#4143CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4143CE

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4143CE	#FFFFFF	#000000	##FFFFFF
##4143CE	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	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: #4143ce;
/* rgb */ color: rgb(65, 67, 206);
/* oklch */ color: oklch(47.6% 0.208 274.5);

Tailwind

colors: {
  custom: {
    50: '#8878de',
    500: '#4143ce',
    950: '#000000',
  },
}

SCSS

$custom: #4143ce;
$custom-light: #8878de;
$custom-dark: #000000;

JSON

{
  "hex": "#4143ce",
  "rgb": {
    "r": 65,
    "g": 67,
    "b": 206
  },
  "hsl": {
    "h": 239.149,
    "s": 58.996,
    "l": 53.137
  },
  "oklch": {
    "l": 0.47572,
    "c": 0.2083,
    "h": 274.5
  },
  "luminance": 0.09594
}

Semantic roles & 50–950 ramp

primary

#4143CE

secondary

#D4D397

accent

#E046E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4143CE

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

Preview Lab → · Contrast checker → · Palette generator →