#3F74AF#3F74AF

#3F74AF is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 55.0% C 0.109 H 252.6°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#3F74AF
RGB	rgb(63, 116, 175)
HSL	hsl(212, 47%, 47%)
HSV	hsv(212, 64%, 69%)
CMYK	cmyk(64%, 33.7%, 0%, 31.4%)
CIE-LAB	lab(47.80, 1.23, -36.63)
CIE-LCH	lch(47.80, 36.65, 271.93°)
OKLab	oklab(54.98% -0.0325 -0.1037)
OKLCH	oklch(54.98% 0.109 252.6)
XYZ	xyz(16.0303, 16.6411, 42.9164)
Luminance	0.1664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F74AF #AF7A3F

analogous

#3FACAF #3F74AF #423FAF

triadic

#3F74AF #AF3F74 #74AF3F

tetradic

#3F74AF #AF3FAC #AF7A3F #3FAF42

square

#3F74AF #AF3FAC #AF7A3F #3FAF42

split-complementary

#3F74AF #AF423F #ACAF3F

monochromatic

#1F3855 #2F5682 #3F74AF #6493C7 #91B2D7

Accessibility & contrast

On white

4.85

#3F74AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#3F74AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F74AF

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F74AF	#FFFFFF	#000000	##FFFFFF
##3F74AF	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B77B1

Deuteranopia (green-blind)

#4B6DAE

Tritanopia (blue-blind)

#008289

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f74af;
/* rgb */ color: rgb(63, 116, 175);
/* oklch */ color: oklch(55.0% 0.109 252.6);

Tailwind

colors: {
  custom: {
    50: '#7f9bc7',
    500: '#3f74af',
    950: '#000000',
  },
}

SCSS

$custom: #3f74af;
$custom-light: #7f9bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f74af",
  "rgb": {
    "r": 63,
    "g": 116,
    "b": 175
  },
  "hsl": {
    "h": 211.607,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54978,
    "c": 0.10865,
    "h": 252.6
  },
  "luminance": 0.16643
}

Semantic roles & 50–950 ramp

primary

#3F74AF

secondary

#C3A687

accent

#9751D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F74AF

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

Preview Lab → · Contrast checker → · Palette generator →