#3F54E2#3F54E2

#3F54E2 is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 52.1% C 0.215 H 270.4°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F54E2
RGB	rgb(63, 84, 226)
HSL	hsl(232, 74%, 57%)
HSV	hsv(232, 72%, 89%)
CMYK	cmyk(72.1%, 62.8%, 0%, 11.4%)
CIE-LAB	lab(42.59, 39.51, -74.37)
CIE-LCH	lch(42.59, 84.21, 297.98°)
OKLab	oklab(52.08% 0.0015 -0.2149)
OKLCH	oklch(52.08% 0.215 270.4)
XYZ	xyz(18.9430, 12.8864, 73.4258)
Luminance	0.1289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F54E2 #E2CD3F

analogous

#3FA6E2 #3F54E2 #7C3FE2

triadic

#3F54E2 #E23F54 #54E23F

tetradic

#3F54E2 #E23FA6 #E2CD3F #3FE27C

square

#3F54E2 #E23FA6 #E2CD3F #3FE27C

split-complementary

#3F54E2 #E27C3F #A6E23F

monochromatic

#162691 #1E34C6 #3F54E2 #7483EA #A9B3F2

Accessibility & contrast

On white

5.87

#3F54E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3F54E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F54E2

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F54E2	#FFFFFF	#000000	##FFFFFF
##3F54E2	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CE7

Deuteranopia (green-blind)

#005DDF

Tritanopia (blue-blind)

#007993

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f54e2;
/* rgb */ color: rgb(63, 84, 226);
/* oklch */ color: oklch(52.1% 0.215 270.4);

Tailwind

colors: {
  custom: {
    50: '#8a84ec',
    500: '#3f54e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f54e2;
$custom-light: #8a84ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f54e2",
  "rgb": {
    "r": 63,
    "g": 84,
    "b": 226
  },
  "hsl": {
    "h": 232.27,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.52077,
    "c": 0.2149,
    "h": 270.4
  },
  "luminance": 0.12888
}

Semantic roles & 50–950 ramp

primary

#3F54E2

secondary

#E0D79D

accent

#D937F0

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3F54E2

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

Preview Lab → · Contrast checker → · Palette generator →