#3F7397#3F7397

#3F7397 is a mid, moderate cyan. Relative luminance 0.156; OKLCH L 53.5% C 0.080 H 240.7°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F7397
RGB	rgb(63, 115, 151)
HSL	hsl(205, 41%, 42%)
HSV	hsv(205, 58%, 59%)
CMYK	cmyk(58.3%, 23.8%, 0%, 40.8%)
CIE-LAB	lab(46.38, -6.31, -24.79)
CIE-LCH	lch(46.38, 25.58, 255.72°)
OKLab	oklab(53.49% -0.039 -0.0694)
OKLCH	oklch(53.49% 0.08 240.7)
XYZ	xyz(13.7645, 15.5514, 31.5485)
Luminance	0.1555 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7397 #97633F

analogous

#3F978F #3F7397 #3F4797

triadic

#3F7397 #973F73 #73973F

tetradic

#3F7397 #8F3F97 #97633F #47973F

square

#3F7397 #8F3F97 #97633F #47973F

split-complementary

#3F7397 #973F47 #978F3F

monochromatic

#1B3141 #2D526C #3F7397 #5992BA #85AFCC

Accessibility & contrast

On white

5.11

#3F7397 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#3F7397 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F7397

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7397	#FFFFFF	#000000	##FFFFFF
##3F7397	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637399

Deuteranopia (green-blind)

#576A96

Tritanopia (blue-blind)

#007C7F

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3f7397;
/* rgb */ color: rgb(63, 115, 151);
/* oklch */ color: oklch(53.5% 0.080 240.7);

Tailwind

colors: {
  custom: {
    50: '#7b9bb5',
    500: '#3f7397',
    950: '#000000',
  },
}

SCSS

$custom: #3f7397;
$custom-light: #7b9bb5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7397",
  "rgb": {
    "r": 63,
    "g": 115,
    "b": 151
  },
  "hsl": {
    "h": 204.545,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.53487,
    "c": 0.07959,
    "h": 240.7
  },
  "luminance": 0.15553
}

Semantic roles & 50–950 ramp

primary

#3F7397

secondary

#B6947C

accent

#8957D1

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F7397

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

Preview Lab → · Contrast checker → · Palette generator →