#3F77AD#3F77AD

#3F77AD is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.6% C 0.103 H 249.4°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F77AD
RGB	rgb(63, 119, 173)
HSL	hsl(209, 47%, 46%)
HSV	hsv(209, 64%, 68%)
CMYK	cmyk(63.6%, 31.2%, 0%, 32.2%)
CIE-LAB	lab(48.59, -1.27, -34.23)
CIE-LCH	lch(48.59, 34.25, 267.87°)
OKLab	oklab(55.56% -0.0363 -0.0966)
OKLCH	oklch(55.56% 0.103 249.4)
XYZ	xyz(16.1868, 17.2660, 42.0067)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F77AD #AD753F

analogous

#3FADAC #3F77AD #3F40AD

triadic

#3F77AD #AD3F77 #77AD3F

tetradic

#3F77AD #AC3FAD #AD753F #40AD3F

square

#3F77AD #AC3FAD #AD753F #40AD3F

split-complementary

#3F77AD #AD3F40 #ADAC3F

monochromatic

#1E3953 #2F5880 #3F77AD #6396C6 #90B4D7

Accessibility & contrast

On white

4.72

#3F77AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3F77AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F77AD

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F77AD	#FFFFFF	#000000	##FFFFFF
##3F77AD	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6079AF

Deuteranopia (green-blind)

#516FAC

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f77ad;
/* rgb */ color: rgb(63, 119, 173);
/* oklch */ color: oklch(55.6% 0.103 249.4);

Tailwind

colors: {
  custom: {
    50: '#7f9ec5',
    500: '#3f77ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f77ad;
$custom-light: #7f9ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f77ad",
  "rgb": {
    "r": 63,
    "g": 119,
    "b": 173
  },
  "hsl": {
    "h": 209.455,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55564,
    "c": 0.10325,
    "h": 249.4
  },
  "luminance": 0.17268
}

Semantic roles & 50–950 ramp

primary

#3F77AD

secondary

#C2A386

accent

#9352D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F77AD

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

Preview Lab → · Contrast checker → · Palette generator →