#3F69AB#3F69AB

#3F69AB is a mid, moderate blue. Relative luminance 0.141; OKLCH L 52.2% C 0.115 H 259.1°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#3F69AB
RGB	rgb(63, 105, 171)
HSL	hsl(217, 46%, 46%)
HSV	hsv(217, 63%, 67%)
CMYK	cmyk(63.2%, 38.6%, 0%, 32.9%)
CIE-LAB	lab(44.37, 6.62, -39.72)
CIE-LCH	lch(44.37, 40.26, 279.46°)
OKLab	oklab(52.23% -0.0217 -0.1128)
OKLCH	oklch(52.23% 0.115 259.1)
XYZ	xyz(14.4496, 14.0989, 40.4801)
Luminance	0.1410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F69AB #AB813F

analogous

#3F9FAB #3F69AB #4B3FAB

triadic

#3F69AB #AB3F69 #69AB3F

tetradic

#3F69AB #AB3F9F #AB813F #3FAB4B

square

#3F69AB #AB3F9F #AB813F #3FAB4B

split-complementary

#3F69AB #AB4B3F #9FAB3F

monochromatic

#1E3252 #2F4E7E #3F69AB #6289C5 #8FAAD6

Accessibility & contrast

On white

5.50

#3F69AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#3F69AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F69AB

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F69AB	#FFFFFF	#000000	##FFFFFF
##3F69AB	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C6EAE

Deuteranopia (green-blind)

#3D64AA

Tritanopia (blue-blind)

#007882

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3f69ab;
/* rgb */ color: rgb(63, 105, 171);
/* oklch */ color: oklch(52.2% 0.115 259.1);

Tailwind

colors: {
  custom: {
    50: '#7e93c4',
    500: '#3f69ab',
    950: '#000000',
  },
}

SCSS

$custom: #3f69ab;
$custom-light: #7e93c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f69ab",
  "rgb": {
    "r": 63,
    "g": 105,
    "b": 171
  },
  "hsl": {
    "h": 216.667,
    "s": 46.154,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52234,
    "c": 0.11489,
    "h": 259.1
  },
  "luminance": 0.141
}

Semantic roles & 50–950 ramp

primary

#3F69AB

secondary

#C1AA85

accent

#A352D6

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3F69AB

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

Preview Lab → · Contrast checker → · Palette generator →