#3F44CB#3F44CB

#3F44CB is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.3% C 0.204 H 273.8°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F44CB
RGB	rgb(63, 68, 203)
HSL	hsl(238, 57%, 52%)
HSV	hsv(238, 69%, 80%)
CMYK	cmyk(69%, 66.5%, 0%, 20.4%)
CIE-LAB	lab(36.93, 41.40, -70.43)
CIE-LCH	lch(36.93, 81.70, 300.45°)
OKLab	oklab(47.34% 0.0136 -0.2035)
OKLCH	oklch(47.34% 0.204 273.8)
XYZ	xyz(14.8929, 9.5014, 57.5374)
Luminance	0.0950 (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

#3F44CB #CBC63F

analogous

#3F8ACB #3F44CB #803FCB

triadic

#3F44CB #CB3F44 #44CB3F

tetradic

#3F44CB #CB3F8A #CBC63F #3FCB80

square

#3F44CB #CB3F8A #CBC63F #3FCB80

split-complementary

#3F44CB #CB803F #8ACB3F

monochromatic

#1F2271 #2C30A1 #3F44CB #6F73D8 #9FA2E5

Accessibility & contrast

On white

7.24

#3F44CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3F44CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F44CB

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44CB	#FFFFFF	#000000	##FFFFFF
##3F44CB	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)

#005DCF

Deuteranopia (green-blind)

#0050C8

Tritanopia (blue-blind)

#006882

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f44cb;
/* rgb */ color: rgb(63, 68, 203);
/* oklch */ color: oklch(47.3% 0.204 273.8);

Tailwind

colors: {
  custom: {
    50: '#8678dc',
    500: '#3f44cb',
    950: '#000000',
  },
}

SCSS

$custom: #3f44cb;
$custom-light: #8678dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44cb",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 203
  },
  "hsl": {
    "h": 237.857,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.47335,
    "c": 0.20391,
    "h": 273.8
  },
  "luminance": 0.09503
}

Semantic roles & 50–950 ramp

primary

#3F44CB

secondary

#D1CF94

accent

#DB47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #3F44CB

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

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