#3F61CA#3F61CA

#3F61CA is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.6% C 0.168 H 267.0°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F61CA
RGB	rgb(63, 97, 202)
HSL	hsl(225, 57%, 52%)
HSV	hsv(225, 69%, 79%)
CMYK	cmyk(68.8%, 52%, 0%, 20.8%)
CIE-LAB	lab(44.04, 22.80, -58.27)
CIE-LCH	lch(44.04, 62.57, 291.37°)
OKLab	oklab(52.59% -0.0089 -0.1674)
OKLCH	oklch(52.59% 0.168 267)
XYZ	xyz(16.9816, 13.8687, 57.6477)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F61CA #CAA83F

analogous

#3FA6CA #3F61CA #633FCA

triadic

#3F61CA #CA3F61 #61CA3F

tetradic

#3F61CA #CA3FA6 #CAA83F #3FCA63

square

#3F61CA #CA3FA6 #CAA83F #3FCA63

split-complementary

#3F61CA #CA633F #A6CA3F

monochromatic

#1F3370 #2C48A0 #3F61CA #6F88D7 #9FB0E4

Accessibility & contrast

On white

5.56

#3F61CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3F61CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F61CA

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F61CA	#FFFFFF	#000000	##FFFFFF
##3F61CA	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D6FCE

Deuteranopia (green-blind)

#0062C8

Tritanopia (blue-blind)

#007A8C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f61ca;
/* rgb */ color: rgb(63, 97, 202);
/* oklch */ color: oklch(52.6% 0.168 267.0);

Tailwind

colors: {
  custom: {
    50: '#848ddb',
    500: '#3f61ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f61ca;
$custom-light: #848ddb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f61ca",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 202
  },
  "hsl": {
    "h": 225.324,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.52593,
    "c": 0.16768,
    "h": 267
  },
  "luminance": 0.1387
}

Semantic roles & 50–950 ramp

primary

#3F61CA

secondary

#D1C294

accent

#BB48E0

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3F61CA

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

Preview Lab → · Contrast checker → · Palette generator →