#3F58AF#3F58AF

#3F58AF is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.8% C 0.141 H 268.7°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F58AF
RGB	rgb(63, 88, 175)
HSL	hsl(227, 47%, 47%)
HSV	hsv(227, 64%, 69%)
CMYK	cmyk(64%, 49.7%, 0%, 31.4%)
CIE-LAB	lab(39.80, 18.91, -49.38)
CIE-LCH	lch(39.80, 52.88, 290.95°)
OKLab	oklab(48.79% -0.0033 -0.1414)
OKLCH	oklch(48.79% 0.141 268.7)
XYZ	xyz(13.2749, 11.1302, 41.9979)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58AF #AF963F

analogous

#3F90AF #3F58AF #5E3FAF

triadic

#3F58AF #AF3F58 #58AF3F

tetradic

#3F58AF #AF3F90 #AF963F #3FAF5E

square

#3F58AF #AF3F90 #AF963F #3FAF5E

split-complementary

#3F58AF #AF5E3F #90AF3F

monochromatic

#1F2B55 #2F4182 #3F58AF #647AC7 #91A1D7

Accessibility & contrast

On white

6.51

#3F58AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3F58AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58AF

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58AF	#FFFFFF	#000000	##FFFFFF
##3F58AF	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2963B2

Deuteranopia (green-blind)

#0E59AD

Tritanopia (blue-blind)

#006C7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f58af;
/* rgb */ color: rgb(63, 88, 175);
/* oklch */ color: oklch(48.8% 0.141 268.7);

Tailwind

colors: {
  custom: {
    50: '#7f86c7',
    500: '#3f58af',
    950: '#000000',
  },
}

SCSS

$custom: #3f58af;
$custom-light: #7f86c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58af",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 175
  },
  "hsl": {
    "h": 226.607,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48794,
    "c": 0.14146,
    "h": 268.7
  },
  "luminance": 0.11131
}

Semantic roles & 50–950 ramp

primary

#3F58AF

secondary

#C3B587

accent

#B951D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F58AF

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

Preview Lab → · Contrast checker → · Palette generator →