#3F61BE#3F61BE

#3F61BE is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.7% C 0.151 H 266.1°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F61BE
RGB	rgb(63, 97, 190)
HSL	hsl(224, 50%, 50%)
HSV	hsv(224, 67%, 75%)
CMYK	cmyk(66.8%, 48.9%, 0%, 25.5%)
CIE-LAB	lab(43.25, 18.48, -52.62)
CIE-LCH	lch(43.25, 55.77, 289.35°)
OKLab	oklab(51.73% -0.0102 -0.1508)
OKLCH	oklch(51.73% 0.151 266.1)
XYZ	xyz(15.6156, 13.3224, 50.4537)
Luminance	0.1332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F61BE #BE9C3F

analogous

#3FA1BE #3F61BE #5D3FBE

triadic

#3F61BE #BE3F61 #61BE3F

tetradic

#3F61BE #BE3FA1 #BE9C3F #3FBE5D

square

#3F61BE #BE3FA1 #BE9C3F #3FBE5D

split-complementary

#3F61BE #BE5D3F #A1BE3F

monochromatic

#213262 #304A90 #3F61BE #6C86CE #9AACDD

Accessibility & contrast

On white

5.73

#3F61BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#3F61BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F61BE

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F61BE	#FFFFFF	#000000	##FFFFFF
##3F61BE	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6CC1

Deuteranopia (green-blind)

#0C61BC

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3f61be;
/* rgb */ color: rgb(63, 97, 190);
/* oklch */ color: oklch(51.7% 0.151 266.1);

Tailwind

colors: {
  custom: {
    50: '#828dd2',
    500: '#3f61be',
    950: '#000000',
  },
}

SCSS

$custom: #3f61be;
$custom-light: #828dd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f61be",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 190
  },
  "hsl": {
    "h": 223.937,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.5173,
    "c": 0.15116,
    "h": 266.1
  },
  "luminance": 0.13324
}

Semantic roles & 50–950 ramp

primary

#3F61BE

secondary

#C9BA8F

accent

#B44EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #3F61BE

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

Preview Lab → · Contrast checker → · Palette generator →