#3F58AA#3F58AA

#3F58AA is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.4% C 0.134 H 268.3°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F58AA
RGB	rgb(63, 88, 170)
HSL	hsl(226, 46%, 46%)
HSV	hsv(226, 63%, 67%)
CMYK	cmyk(62.9%, 48.2%, 0%, 33.3%)
CIE-LAB	lab(39.47, 17.12, -46.95)
CIE-LCH	lch(39.47, 49.97, 290.04°)
OKLab	oklab(48.44% -0.004 -0.1343)
OKLCH	oklch(48.44% 0.134 268.3)
XYZ	xyz(12.7929, 10.9374, 39.4594)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F58AA #AA913F

analogous

#3F8DAA #3F58AA #5B3FAA

triadic

#3F58AA #AA3F58 #58AA3F

tetradic

#3F58AA #AA3F8D #AA913F #3FAA5B

square

#3F58AA #AA3F8D #AA913F #3FAA5B

split-complementary

#3F58AA #AA5B3F #8DAA3F

monochromatic

#1E2A51 #2E417D #3F58AA #6279C5 #8E9FD5

Accessibility & contrast

On white

6.59

#3F58AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3F58AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F58AA

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F58AA	#FFFFFF	#000000	##FFFFFF
##3F58AA	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F62AD

Deuteranopia (green-blind)

#1A58A8

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f58aa;
/* rgb */ color: rgb(63, 88, 170);
/* oklch */ color: oklch(48.4% 0.134 268.3);

Tailwind

colors: {
  custom: {
    50: '#7e86c4',
    500: '#3f58aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f58aa;
$custom-light: #7e86c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f58aa",
  "rgb": {
    "r": 63,
    "g": 88,
    "b": 170
  },
  "hsl": {
    "h": 225.981,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48443,
    "c": 0.13432,
    "h": 268.3
  },
  "luminance": 0.10938
}

Semantic roles & 50–950 ramp

primary

#3F58AA

secondary

#C0B285

accent

#B752D6

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3F58AA

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

Preview Lab → · Contrast checker → · Palette generator →