#3F59AD#3F59AD

#3F59AD is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.9% C 0.137 H 268.1°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3F59AD
RGB	rgb(63, 89, 173)
HSL	hsl(226, 47%, 46%)
HSV	hsv(226, 64%, 68%)
CMYK	cmyk(63.6%, 48.6%, 0%, 32.2%)
CIE-LAB	lab(39.94, 17.54, -47.97)
CIE-LCH	lch(39.94, 51.07, 290.09°)
OKLab	oklab(48.86% -0.0046 -0.1372)
OKLCH	oklch(48.86% 0.137 268.1)
XYZ	xyz(13.1625, 11.2175, 40.9986)
Luminance	0.1122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F59AD #AD933F

analogous

#3F90AD #3F59AD #5C3FAD

triadic

#3F59AD #AD3F59 #59AD3F

tetradic

#3F59AD #AD3F90 #AD933F #3FAD5C

square

#3F59AD #AD3F90 #AD933F #3FAD5C

split-complementary

#3F59AD #AD5C3F #90AD3F

monochromatic

#1E2B53 #2F4280 #3F59AD #637AC6 #90A1D7

Accessibility & contrast

On white

6.47

#3F59AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#3F59AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F59AD

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F59AD	#FFFFFF	#000000	##FFFFFF
##3F59AD	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E63B0

Deuteranopia (green-blind)

#1859AB

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f59ad;
/* rgb */ color: rgb(63, 89, 173);
/* oklch */ color: oklch(48.9% 0.137 268.1);

Tailwind

colors: {
  custom: {
    50: '#7f87c6',
    500: '#3f59ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f59ad;
$custom-light: #7f87c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f59ad",
  "rgb": {
    "r": 63,
    "g": 89,
    "b": 173
  },
  "hsl": {
    "h": 225.818,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48863,
    "c": 0.13732,
    "h": 268.1
  },
  "luminance": 0.11219
}

Semantic roles & 50–950 ramp

primary

#3F59AD

secondary

#C2B486

accent

#B752D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F59AD

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

Preview Lab → · Contrast checker → · Palette generator →