#3F59AE#3F59AE

#3F59AE is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.9% C 0.139 H 268.2°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#3F59AE
RGB	rgb(63, 89, 174)
HSL	hsl(226, 47%, 46%)
HSV	hsv(226, 64%, 68%)
CMYK	cmyk(63.8%, 48.9%, 0%, 31.8%)
CIE-LAB	lab(40.01, 17.90, -48.45)
CIE-LCH	lch(40.01, 51.65, 290.28°)
OKLab	oklab(48.93% -0.0044 -0.1387)
OKLCH	oklch(48.93% 0.139 268.2)
XYZ	xyz(13.2597, 11.2563, 41.5101)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F59AE #AE943F

analogous

#3F91AE #3F59AE #5D3FAE

triadic

#3F59AE #AE3F59 #59AE3F

tetradic

#3F59AE #AE3F91 #AE943F #3FAE5D

square

#3F59AE #AE3F91 #AE943F #3FAE5D

split-complementary

#3F59AE #AE5D3F #91AE3F

monochromatic

#1E2B54 #2F4281 #3F59AE #647BC7 #90A1D7

Accessibility & contrast

On white

6.46

#3F59AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3F59AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F59AE

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F59AE	#FFFFFF	#000000	##FFFFFF
##3F59AE	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D64B1

Deuteranopia (green-blind)

#155AAC

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f59ae;
/* rgb */ color: rgb(63, 89, 174);
/* oklch */ color: oklch(48.9% 0.139 268.2);

Tailwind

colors: {
  custom: {
    50: '#7f87c7',
    500: '#3f59ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f59ae;
$custom-light: #7f87c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f59ae",
  "rgb": {
    "r": 63,
    "g": 89,
    "b": 174
  },
  "hsl": {
    "h": 225.946,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48933,
    "c": 0.13875,
    "h": 268.2
  },
  "luminance": 0.11258
}

Semantic roles & 50–950 ramp

primary

#3F59AE

secondary

#C2B487

accent

#B751D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F59AE

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

Preview Lab → · Contrast checker → · Palette generator →