#3F69BF#3F69BF

#3F69BF is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.5% C 0.143 H 262.9°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3F69BF
RGB	rgb(63, 105, 191)
HSL	hsl(220, 50%, 50%)
HSV	hsv(220, 67%, 75%)
CMYK	cmyk(67%, 45%, 0%, 25.1%)
CIE-LAB	lab(45.52, 13.74, -49.54)
CIE-LCH	lch(45.52, 51.41, 285.51°)
OKLab	oklab(53.5% -0.0176 -0.1416)
OKLCH	oklch(53.5% 0.143 262.9)
XYZ	xyz(16.5021, 14.9199, 51.2903)
Luminance	0.1492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F69BF #BF953F

analogous

#3FA9BF #3F69BF #553FBF

triadic

#3F69BF #BF3F69 #69BF3F

tetradic

#3F69BF #BF3FA9 #BF953F #3FBF55

square

#3F69BF #BF3FA9 #BF953F #3FBF55

split-complementary

#3F69BF #BF553F #A9BF3F

monochromatic

#213663 #305091 #3F69BF #6D8DCF #9BB1DE

Accessibility & contrast

On white

5.27

#3F69BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#3F69BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F69BF

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F69BF	#FFFFFF	#000000	##FFFFFF
##3F69BF	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F72C2

Deuteranopia (green-blind)

#2866BD

Tritanopia (blue-blind)

#007D8B

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3f69bf;
/* rgb */ color: rgb(63, 105, 191);
/* oklch */ color: oklch(53.5% 0.143 262.9);

Tailwind

colors: {
  custom: {
    50: '#8293d3',
    500: '#3f69bf',
    950: '#000000',
  },
}

SCSS

$custom: #3f69bf;
$custom-light: #8293d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f69bf",
  "rgb": {
    "r": 63,
    "g": 105,
    "b": 191
  },
  "hsl": {
    "h": 220.313,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.53495,
    "c": 0.14273,
    "h": 262.9
  },
  "luminance": 0.14922
}

Semantic roles & 50–950 ramp

primary

#3F69BF

secondary

#CAB790

accent

#AC4EDA

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F69BF

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

Preview Lab → · Contrast checker → · Palette generator →