#3F718B#3F718B

#3F718B is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.4% C 0.068 H 232.8°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3F718B
RGB	rgb(63, 113, 139)
HSL	hsl(201, 38%, 40%)
HSV	hsv(201, 55%, 55%)
CMYK	cmyk(54.7%, 18.7%, 0%, 45.5%)
CIE-LAB	lab(45.26, -9.02, -19.40)
CIE-LCH	lch(45.26, 21.40, 245.06°)
OKLab	oklab(52.43% -0.041 -0.054)
OKLCH	oklch(52.43% 0.068 232.8)
XYZ	xyz(12.6135, 14.7300, 26.5996)
Luminance	0.1473 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F718B #8B593F

analogous

#3F8B7F #3F718B #3F4B8B

triadic

#3F718B #8B3F71 #718B3F

tetradic

#3F718B #7F3F8B #8B593F #4B8B3F

square

#3F718B #7F3F8B #8B593F #4B8B3F

split-complementary

#3F718B #8B3F4B #8B7F3F

monochromatic

#192D37 #2C4F61 #3F718B #5592B2 #7FADC5

Accessibility & contrast

On white

5.32

#3F718B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#3F718B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F718B

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F718B	#FFFFFF	#000000	##FFFFFF
##3F718B	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64708C

Deuteranopia (green-blind)

#5A688B

Tritanopia (blue-blind)

#0C7879

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f718b;
/* rgb */ color: rgb(63, 113, 139);
/* oklch */ color: oklch(52.4% 0.068 232.8);

Tailwind

colors: {
  custom: {
    50: '#7a99ad',
    500: '#3f718b',
    950: '#000000',
  },
}

SCSS

$custom: #3f718b;
$custom-light: #7a99ad;
$custom-dark: #000000;

JSON

{
  "hex": "#3f718b",
  "rgb": {
    "r": 63,
    "g": 113,
    "b": 139
  },
  "hsl": {
    "h": 200.526,
    "s": 37.624,
    "l": 39.608
  },
  "oklch": {
    "l": 0.52434,
    "c": 0.06781,
    "h": 232.8
  },
  "luminance": 0.14731
}

Semantic roles & 50–950 ramp

primary

#3F718B

secondary

#AF8A76

accent

#825ACE

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0E10

muted

#7C7E7F

Preview Lab

Preview with #3F718B

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

Preview Lab → · Contrast checker → · Palette generator →