#3F59AF#3F59AF

#3F59AF is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.0% C 0.140 H 268.2°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F59AF
RGB	rgb(63, 89, 175)
HSL	hsl(226, 47%, 47%)
HSV	hsv(226, 64%, 69%)
CMYK	cmyk(64%, 49.1%, 0%, 31.4%)
CIE-LAB	lab(40.07, 18.26, -48.94)
CIE-LCH	lch(40.07, 52.23, 290.46°)
OKLab	oklab(49% -0.0043 -0.1401)
OKLCH	oklch(49% 0.14 268.2)
XYZ	xyz(13.3575, 11.2955, 42.0254)
Luminance	0.1130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F59AF #AF953F

analogous

#3F91AF #3F59AF #5D3FAF

triadic

#3F59AF #AF3F59 #59AF3F

tetradic

#3F59AF #AF3F91 #AF953F #3FAF5D

square

#3F59AF #AF3F91 #AF953F #3FAF5D

split-complementary

#3F59AF #AF5D3F #91AF3F

monochromatic

#1F2B55 #2F4282 #3F59AF #647BC7 #91A1D7

Accessibility & contrast

On white

6.44

#3F59AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3F59AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F59AF

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F59AF	#FFFFFF	#000000	##FFFFFF
##3F59AF	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C64B2

Deuteranopia (green-blind)

#135AAD

Tritanopia (blue-blind)

#006D7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f59af;
/* rgb */ color: rgb(63, 89, 175);
/* oklch */ color: oklch(49.0% 0.140 268.2);

Tailwind

colors: {
  custom: {
    50: '#7f87c7',
    500: '#3f59af',
    950: '#000000',
  },
}

SCSS

$custom: #3f59af;
$custom-light: #7f87c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f59af",
  "rgb": {
    "r": 63,
    "g": 89,
    "b": 175
  },
  "hsl": {
    "h": 226.071,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49003,
    "c": 0.14018,
    "h": 268.2
  },
  "luminance": 0.11297
}

Semantic roles & 50–950 ramp

primary

#3F59AF

secondary

#C3B587

accent

#B851D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F59AF

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

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