#3F7DC7#3F7DC7

#3F7DC7 is a mid, vivid cyan. Relative luminance 0.198; OKLCH L 58.4% C 0.131 H 254.3°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F7DC7
RGB	rgb(63, 125, 199)
HSL	hsl(213, 55%, 51%)
HSV	hsv(213, 68%, 78%)
CMYK	cmyk(68.3%, 37.2%, 0%, 22%)
CIE-LAB	lab(51.66, 4.20, -44.36)
CIE-LCH	lch(51.66, 44.55, 275.40°)
OKLab	oklab(58.4% -0.0354 -0.1261)
OKLCH	oklch(58.4% 0.131 254.3)
XYZ	xyz(19.6885, 19.8455, 56.8147)
Luminance	0.1985 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7DC7 #C7893F

analogous

#3FC1C7 #3F7DC7 #453FC7

triadic

#3F7DC7 #C73F7D #7DC73F

tetradic

#3F7DC7 #C73FC1 #C7893F #3FC745

square

#3F7DC7 #C73FC1 #C7893F #3FC745

split-complementary

#3F7DC7 #C7453F #C1C73F

monochromatic

#20426C #2D609B #3F7DC7 #6E9DD5 #9EBDE3

Accessibility & contrast

On white

4.23

#3F7DC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#3F7DC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7DC7

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7DC7	#FFFFFF	#000000	##000000
##3F7DC7	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C82CA

Deuteranopia (green-blind)

#4875C6

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f7dc7;
/* rgb */ color: rgb(63, 125, 199);
/* oklch */ color: oklch(58.4% 0.131 254.3);

Tailwind

colors: {
  custom: {
    50: '#83a2d8',
    500: '#3f7dc7',
    950: '#000000',
  },
}

SCSS

$custom: #3f7dc7;
$custom-light: #83a2d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7dc7",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 199
  },
  "hsl": {
    "h": 212.647,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58398,
    "c": 0.13101,
    "h": 254.3
  },
  "luminance": 0.19848
}

Semantic roles & 50–950 ramp

primary

#3F7DC7

secondary

#CFB493

accent

#9A4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F14

muted

#7D7E83

Preview Lab

Preview with #3F7DC7

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

Preview Lab → · Contrast checker → · Palette generator →