#3F75AD#3F75AD

#3F75AD is a mid, moderate cyan. Relative luminance 0.168; OKLCH L 55.1% C 0.105 H 251.0°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F75AD
RGB	rgb(63, 117, 173)
HSL	hsl(211, 47%, 46%)
HSV	hsv(211, 64%, 68%)
CMYK	cmyk(63.6%, 32.4%, 0%, 32.2%)
CIE-LAB	lab(48.00, -0.07, -35.16)
CIE-LCH	lch(48.00, 35.16, 269.89°)
OKLab	oklab(55.1% -0.0341 -0.0994)
OKLCH	oklch(55.1% 0.105 251)
XYZ	xyz(15.9513, 16.7949, 41.9282)
Luminance	0.1680 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F75AD #AD773F

analogous

#3FACAD #3F75AD #403FAD

triadic

#3F75AD #AD3F75 #75AD3F

tetradic

#3F75AD #AD3FAC #AD773F #3FAD40

square

#3F75AD #AD3FAC #AD773F #3FAD40

split-complementary

#3F75AD #AD403F #ACAD3F

monochromatic

#1E3853 #2F5780 #3F75AD #6394C6 #90B3D7

Accessibility & contrast

On white

4.82

#3F75AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3F75AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F75AD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F75AD	#FFFFFF	#000000	##FFFFFF
##3F75AD	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D78AF

Deuteranopia (green-blind)

#4E6DAC

Tritanopia (blue-blind)

#008289

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f75ad;
/* rgb */ color: rgb(63, 117, 173);
/* oklch */ color: oklch(55.1% 0.105 251.0);

Tailwind

colors: {
  custom: {
    50: '#7e9cc5',
    500: '#3f75ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f75ad;
$custom-light: #7e9cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f75ad",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 173
  },
  "hsl": {
    "h": 210.545,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55099,
    "c": 0.10508,
    "h": 251
  },
  "luminance": 0.16796
}

Semantic roles & 50–950 ramp

primary

#3F75AD

secondary

#C2A486

accent

#9552D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F75AD

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

Preview Lab → · Contrast checker → · Palette generator →