#3F74AE#3F74AE

#3F74AE is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.9% C 0.107 H 252.2°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F74AE
RGB	rgb(63, 116, 174)
HSL	hsl(211, 47%, 46%)
HSV	hsv(211, 64%, 68%)
CMYK	cmyk(63.8%, 33.3%, 0%, 31.8%)
CIE-LAB	lab(47.75, 0.88, -36.13)
CIE-LCH	lch(47.75, 36.14, 271.40°)
OKLab	oklab(54.92% -0.0328 -0.1022)
OKLCH	oklch(54.92% 0.107 252.2)
XYZ	xyz(15.9325, 16.6020, 42.4011)
Luminance	0.1660 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F74AE #AE793F

analogous

#3FACAE #3F74AE #423FAE

triadic

#3F74AE #AE3F74 #74AE3F

tetradic

#3F74AE #AE3FAC #AE793F #3FAE42

square

#3F74AE #AE3FAC #AE793F #3FAE42

split-complementary

#3F74AE #AE423F #ACAE3F

monochromatic

#1E3854 #2F5681 #3F74AE #6493C7 #90B2D7

Accessibility & contrast

On white

4.86

#3F74AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3F74AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F74AE

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F74AE	#FFFFFF	#000000	##FFFFFF
##3F74AE	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B77B0

Deuteranopia (green-blind)

#4C6DAD

Tritanopia (blue-blind)

#008189

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f74ae;
/* rgb */ color: rgb(63, 116, 174);
/* oklch */ color: oklch(54.9% 0.107 252.2);

Tailwind

colors: {
  custom: {
    50: '#7f9bc6',
    500: '#3f74ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f74ae;
$custom-light: #7f9bc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f74ae",
  "rgb": {
    "r": 63,
    "g": 116,
    "b": 174
  },
  "hsl": {
    "h": 211.351,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54922,
    "c": 0.10734,
    "h": 252.2
  },
  "luminance": 0.16604
}

Semantic roles & 50–950 ramp

primary

#3F74AE

secondary

#C2A687

accent

#9751D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F74AE

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

Preview Lab → · Contrast checker → · Palette generator →