#3F69BC#3F69BC

#3F69BC is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.3% C 0.139 H 262.5°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#3F69BC
RGB	rgb(63, 105, 188)
HSL	hsl(220, 50%, 49%)
HSV	hsv(220, 66%, 74%)
CMYK	cmyk(66.5%, 44.1%, 0%, 26.3%)
CIE-LAB	lab(45.34, 12.67, -48.09)
CIE-LCH	lch(45.34, 49.73, 284.76°)
OKLab	oklab(53.3% -0.0182 -0.1374)
OKLCH	oklch(53.3% 0.139 262.5)
XYZ	xyz(16.1754, 14.7892, 49.5694)
Luminance	0.1479 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F69BC #BC923F

analogous

#3FA8BC #3F69BC #543FBC

triadic

#3F69BC #BC3F69 #69BC3F

tetradic

#3F69BC #BC3FA8 #BC923F #3FBC54

square

#3F69BC #BC3FA8 #BC923F #3FBC54

split-complementary

#3F69BC #BC543F #A8BC3F

monochromatic

#203660 #304F8E #3F69BC #6B8CCD #99B0DD

Accessibility & contrast

On white

5.31

#3F69BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#3F69BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F69BC

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F69BC	#FFFFFF	#000000	##FFFFFF
##3F69BC	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4171BF

Deuteranopia (green-blind)

#2C66BA

Tritanopia (blue-blind)

#007C89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f69bc;
/* rgb */ color: rgb(63, 105, 188);
/* oklch */ color: oklch(53.3% 0.139 262.5);

Tailwind

colors: {
  custom: {
    50: '#8193d1',
    500: '#3f69bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f69bc;
$custom-light: #8193d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f69bc",
  "rgb": {
    "r": 63,
    "g": 105,
    "b": 188
  },
  "hsl": {
    "h": 219.84,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.53298,
    "c": 0.13858,
    "h": 262.5
  },
  "luminance": 0.14791
}

Semantic roles & 50–950 ramp

primary

#3F69BC

secondary

#C9B58E

accent

#AB4ED9

background

#F8F9FC

surface

#F0F1F9

border

#CBCBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3F69BC

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

Preview Lab → · Contrast checker → · Palette generator →