#3F56CA#3F56CA

#3F56CA is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.181 H 270.1°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F56CA
RGB	rgb(63, 86, 202)
HSL	hsl(230, 57%, 52%)
HSV	hsv(230, 69%, 79%)
CMYK	cmyk(68.8%, 57.4%, 0%, 20.8%)
CIE-LAB	lab(41.18, 29.83, -62.92)
CIE-LCH	lch(41.18, 69.63, 295.36°)
OKLab	oklab(50.44% 0.0003 -0.1813)
OKLCH	oklch(50.44% 0.181 270.1)
XYZ	xyz(16.0347, 11.9750, 57.3320)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F56CA #CAB33F

analogous

#3F9CCA #3F56CA #6E3FCA

triadic

#3F56CA #CA3F56 #56CA3F

tetradic

#3F56CA #CA3F9C #CAB33F #3FCA6E

square

#3F56CA #CA3F9C #CAB33F #3FCA6E

split-complementary

#3F56CA #CA6E3F #9CCA3F

monochromatic

#1F2C70 #2C3FA0 #3F56CA #6F80D7 #9FAAE4

Accessibility & contrast

On white

6.18

#3F56CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3F56CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F56CA

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F56CA	#FFFFFF	#000000	##FFFFFF
##3F56CA	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#007387

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f56ca;
/* rgb */ color: rgb(63, 86, 202);
/* oklch */ color: oklch(50.4% 0.181 270.1);

Tailwind

colors: {
  custom: {
    50: '#8585db',
    500: '#3f56ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f56ca;
$custom-light: #8585db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f56ca",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 202
  },
  "hsl": {
    "h": 230.072,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50436,
    "c": 0.18128,
    "h": 270.1
  },
  "luminance": 0.11977
}

Semantic roles & 50–950 ramp

primary

#3F56CA

secondary

#D1C794

accent

#C748E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3F56CA

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

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