#3F53AA#3F53AA

#3F53AA is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.4% C 0.141 H 270.5°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F53AA
RGB	rgb(63, 83, 170)
HSL	hsl(229, 46%, 46%)
HSV	hsv(229, 63%, 67%)
CMYK	cmyk(62.9%, 51.2%, 0%, 33.3%)
CIE-LAB	lab(38.10, 20.37, -49.16)
CIE-LCH	lch(38.10, 53.21, 292.51°)
OKLab	oklab(47.4% 0.0012 -0.1408)
OKLCH	oklch(47.4% 0.141 270.5)
XYZ	xyz(12.3964, 10.1445, 39.3272)
Luminance	0.1015 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F53AA #AA963F

analogous

#3F88AA #3F53AA #603FAA

triadic

#3F53AA #AA3F53 #53AA3F

tetradic

#3F53AA #AA3F88 #AA963F #3FAA60

square

#3F53AA #AA3F88 #AA963F #3FAA60

split-complementary

#3F53AA #AA603F #88AA3F

monochromatic

#1E2751 #2E3D7D #3F53AA #6274C5 #8E9BD5

Accessibility & contrast

On white

6.93

#3F53AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3F53AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F53AA

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F53AA	#FFFFFF	#000000	##FFFFFF
##3F53AA	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225FAD

Deuteranopia (green-blind)

#0455A8

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f53aa;
/* rgb */ color: rgb(63, 83, 170);
/* oklch */ color: oklch(47.4% 0.141 270.5);

Tailwind

colors: {
  custom: {
    50: '#7f83c4',
    500: '#3f53aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f53aa;
$custom-light: #7f83c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f53aa",
  "rgb": {
    "r": 63,
    "g": 83,
    "b": 170
  },
  "hsl": {
    "h": 228.785,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.474,
    "c": 0.14082,
    "h": 270.5
  },
  "luminance": 0.10146
}

Semantic roles & 50–950 ramp

primary

#3F53AA

secondary

#C0B585

accent

#BD52D6

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F53AA

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

Preview Lab → · Contrast checker → · Palette generator →