#3F74A3#3F74A3

#3F74A3 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.3% C 0.093 H 247.2°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F74A3
RGB	rgb(63, 116, 163)
HSL	hsl(208, 44%, 44%)
HSV	hsv(208, 61%, 64%)
CMYK	cmyk(61.3%, 28.8%, 0%, 36.1%)
CIE-LAB	lab(47.22, -2.89, -30.54)
CIE-LCH	lch(47.22, 30.67, 264.59°)
OKLab	oklab(54.33% -0.0361 -0.086)
OKLCH	oklch(54.33% 0.093 247.2)
XYZ	xyz(14.9037, 16.1905, 36.9829)
Luminance	0.1619 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F74A3 #A36E3F

analogous

#3FA3A0 #3F74A3 #3F42A3

triadic

#3F74A3 #A33F74 #74A33F

tetradic

#3F74A3 #A03FA3 #A36E3F #42A33F

square

#3F74A3 #A03FA3 #A36E3F #42A33F

split-complementary

#3F74A3 #A33F42 #A3A03F

monochromatic

#1D354B #2E5577 #3F74A3 #5E93C1 #8AB0D2

Accessibility & contrast

On white

4.95

#3F74A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3F74A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F74A3

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F74A3	#FFFFFF	#000000	##FFFFFF
##3F74A3	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6075A5

Deuteranopia (green-blind)

#526CA2

Tritanopia (blue-blind)

#007F84

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f74a3;
/* rgb */ color: rgb(63, 116, 163);
/* oklch */ color: oklch(54.3% 0.093 247.2);

Tailwind

colors: {
  custom: {
    50: '#7d9bbe',
    500: '#3f74a3',
    950: '#000000',
  },
}

SCSS

$custom: #3f74a3;
$custom-light: #7d9bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#3f74a3",
  "rgb": {
    "r": 63,
    "g": 116,
    "b": 163
  },
  "hsl": {
    "h": 208.2,
    "s": 44.248,
    "l": 44.314
  },
  "oklch": {
    "l": 0.54331,
    "c": 0.09324,
    "h": 247.2
  },
  "luminance": 0.16192
}

Semantic roles & 50–950 ramp

primary

#3F74A3

secondary

#BD9D81

accent

#9054D4

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3F74A3

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

Preview Lab → · Contrast checker → · Palette generator →