#3F74AD#3F74AD

#3F74AD is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.9% C 0.106 H 251.8°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F74AD
RGB	rgb(63, 116, 173)
HSL	hsl(211, 47%, 46%)
HSV	hsv(211, 64%, 68%)
CMYK	cmyk(63.6%, 32.9%, 0%, 32.2%)
CIE-LAB	lab(47.70, 0.54, -35.62)
CIE-LCH	lch(47.70, 35.63, 270.86°)
OKLab	oklab(54.87% -0.0331 -0.1007)
OKLCH	oklch(54.87% 0.106 251.8)
XYZ	xyz(15.8354, 16.5632, 41.8895)
Luminance	0.1656 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F74AD #AD783F

analogous

#3FABAD #3F74AD #413FAD

triadic

#3F74AD #AD3F74 #74AD3F

tetradic

#3F74AD #AD3FAB #AD783F #3FAD41

square

#3F74AD #AD3FAB #AD783F #3FAD41

split-complementary

#3F74AD #AD413F #ABAD3F

monochromatic

#1E3853 #2F5680 #3F74AD #6393C6 #90B2D7

Accessibility & contrast

On white

4.87

#3F74AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3F74AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F74AD

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F74AD	#FFFFFF	#000000	##FFFFFF
##3F74AD	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B77AF

Deuteranopia (green-blind)

#4D6CAC

Tritanopia (blue-blind)

#008188

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f74ad;
/* rgb */ color: rgb(63, 116, 173);
/* oklch */ color: oklch(54.9% 0.106 251.8);

Tailwind

colors: {
  custom: {
    50: '#7e9bc5',
    500: '#3f74ad',
    950: '#000000',
  },
}

SCSS

$custom: #3f74ad;
$custom-light: #7e9bc5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f74ad",
  "rgb": {
    "r": 63,
    "g": 116,
    "b": 173
  },
  "hsl": {
    "h": 211.091,
    "s": 46.61,
    "l": 46.275
  },
  "oklch": {
    "l": 0.54867,
    "c": 0.10603,
    "h": 251.8
  },
  "luminance": 0.16565
}

Semantic roles & 50–950 ramp

primary

#3F74AD

secondary

#C2A586

accent

#9652D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F74AD

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

Preview Lab → · Contrast checker → · Palette generator →