#4143CA#4143CA

#4143CA is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.2% C 0.203 H 274.7°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#4143CA
RGB	rgb(65, 67, 202)
HSL	hsl(239, 56%, 52%)
HSV	hsv(239, 68%, 79%)
CMYK	cmyk(67.8%, 66.8%, 0%, 20.8%)
CIE-LAB	lab(36.75, 41.91, -70.15)
CIE-LCH	lch(36.75, 81.72, 300.86°)
OKLab	oklab(47.21% 0.0167 -0.2026)
OKLCH	oklch(47.21% 0.203 274.7)
XYZ	xyz(14.8443, 9.4010, 56.8980)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.99

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4143CA #CAC841

analogous

#4188CA #4143CA #8341CA

triadic

#4143CA #CA4143 #43CA41

tetradic

#4143CA #CA4188 #CAC841 #41CA83

square

#4143CA #CA4188 #CAC841 #41CA83

split-complementary

#4143CA #CA8341 #88CA41

monochromatic

#202171 #2D2FA1 #4143CA #7172D7 #A1A2E5

Accessibility & contrast

On white

7.29

#4143CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#4143CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4143CA

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4143CA	#FFFFFF	#000000	##FFFFFF
##4143CA	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	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: #4143ca;
/* rgb */ color: rgb(65, 67, 202);
/* oklch */ color: oklch(47.2% 0.203 274.7);

Tailwind

colors: {
  custom: {
    50: '#8778db',
    500: '#4143ca',
    950: '#000000',
  },
}

SCSS

$custom: #4143ca;
$custom-light: #8778db;
$custom-dark: #000000;

JSON

{
  "hex": "#4143ca",
  "rgb": {
    "r": 65,
    "g": 67,
    "b": 202
  },
  "hsl": {
    "h": 239.124,
    "s": 56.379,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47205,
    "c": 0.20327,
    "h": 274.7
  },
  "luminance": 0.09402
}

Semantic roles & 50–950 ramp

primary

#4143CA

secondary

#D1D096

accent

#DD48E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #4143CA

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

Preview Lab → · Contrast checker → · Palette generator →