#3F46CA#3F46CA

#3F46CA is a mid, highly saturated blue. Relative luminance 0.097; OKLCH L 47.6% C 0.200 H 273.5°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#3F46CA
RGB	rgb(63, 70, 202)
HSL	hsl(237, 57%, 52%)
HSV	hsv(237, 69%, 79%)
CMYK	cmyk(68.8%, 65.3%, 0%, 20.8%)
CIE-LAB	lab(37.30, 39.85, -69.25)
CIE-LCH	lch(37.30, 79.90, 299.92°)
OKLab	oklab(47.57% 0.0123 -0.2)
OKLCH	oklch(47.57% 0.2 273.5)
XYZ	xyz(14.8972, 9.6999, 56.9529)
Luminance	0.0970 (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

#3F46CA #CAC33F

analogous

#3F8CCA #3F46CA #7D3FCA

triadic

#3F46CA #CA3F46 #46CA3F

tetradic

#3F46CA #CA3F8C #CAC33F #3FCA7D

square

#3F46CA #CA3F8C #CAC33F #3FCA7D

split-complementary

#3F46CA #CA7D3F #8CCA3F

monochromatic

#1F2370 #2C32A0 #3F46CA #6F74D7 #9FA2E4

Accessibility & contrast

On white

7.14

#3F46CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#3F46CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F46CA

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F46CA	#FFFFFF	#000000	##FFFFFF
##3F46CA	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ECE

Deuteranopia (green-blind)

#0051C7

Tritanopia (blue-blind)

#006982

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f46ca;
/* rgb */ color: rgb(63, 70, 202);
/* oklch */ color: oklch(47.6% 0.200 273.5);

Tailwind

colors: {
  custom: {
    50: '#867adb',
    500: '#3f46ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f46ca;
$custom-light: #867adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f46ca",
  "rgb": {
    "r": 63,
    "g": 70,
    "b": 202
  },
  "hsl": {
    "h": 236.978,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.47574,
    "c": 0.20037,
    "h": 273.5
  },
  "luminance": 0.09701
}

Semantic roles & 50–950 ramp

primary

#3F46CA

secondary

#D1CE94

accent

#D848E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #3F46CA

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

Preview Lab → · Contrast checker → · Palette generator →