#3F58AD#3F58AD

#3F58AD is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.7% C 0.139 H 268.5°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#3F58AD
RGB	rgb(63, 88, 173)
HSL	hsl(226, 47%, 46%)
HSV	hsv(226, 64%, 68%)
CMYK	cmyk(63.6%, 49.1%, 0%, 32.2%)
CIE-LAB	lab(39.67, 18.19, -48.41)
CIE-LCH	lch(39.67, 51.72, 290.60°)
OKLab	oklab(48.65% -0.0036 -0.1386)
OKLCH	oklch(48.65% 0.139 268.5)
XYZ	xyz(13.0799, 11.0522, 40.9711)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58AD #AD943F

analogous

#3F8FAD #3F58AD #5D3FAD

triadic

#3F58AD #AD3F58 #58AD3F

tetradic

#3F58AD #AD3F8F #AD943F #3FAD5D

square

#3F58AD #AD3F8F #AD943F #3FAD5D

split-complementary

#3F58AD #AD5D3F #8FAD3F

monochromatic

#1E2A53 #2F4180 #3F58AD #637AC6 #90A0D7

Accessibility & contrast

On white

6.54

#3F58AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3F58AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58AD

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58AD	#FFFFFF	#000000	##FFFFFF
##3F58AD	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C63B0

Deuteranopia (green-blind)

#1459AB

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f58ad;
/* rgb */ color: rgb(63, 88, 173);
/* oklch */ color: oklch(48.7% 0.139 268.5);

Tailwind

colors: {
  custom: {
    50: '#7f86c6',
    500: '#3f58ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f58ad;
$custom-light: #7f86c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58ad",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 173
  },
  "hsl": {
    "h": 226.364,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48653,
    "c": 0.13861,
    "h": 268.5
  },
  "luminance": 0.11053
}

Semantic roles & 50–950 ramp

primary

#3F58AD

secondary

#C2B486

accent

#B852D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F58AD

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

Preview Lab → · Contrast checker → · Palette generator →