#3F7BCC#3F7BCC

#3F7BCC is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.3% C 0.140 H 256.6°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BCC
RGB	rgb(63, 123, 204)
HSL	hsl(214, 58%, 52%)
HSV	hsv(214, 69%, 80%)
CMYK	cmyk(69.1%, 39.7%, 0%, 20%)
CIE-LAB	lab(51.36, 7.19, -47.69)
CIE-LCH	lch(51.36, 48.22, 278.58°)
OKLab	oklab(58.25% -0.0323 -0.1359)
OKLCH	oklch(58.25% 0.14 256.6)
XYZ	xyz(20.0280, 19.5802, 59.8389)
Luminance	0.1958 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BCC #CC903F

analogous

#3FC2CC #3F7BCC #493FCC

triadic

#3F7BCC #CC3F7B #7BCC3F

tetradic

#3F7BCC #CC3FC2 #CC903F #3FCC49

square

#3F7BCC #CC3FC2 #CC903F #3FCC49

split-complementary

#3F7BCC #CC493F #C2CC3F

monochromatic

#1E4272 #2B5EA3 #3F7BCC #6F9CD9 #A0BDE6

Accessibility & contrast

On white

4.27

#3F7BCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#3F7BCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BCC

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BCC	#FFFFFF	#000000	##000000
##3F7BCC	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5681CF

Deuteranopia (green-blind)

#4074CA

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7bcc;
/* rgb */ color: rgb(63, 123, 204);
/* oklch */ color: oklch(58.3% 0.140 256.6);

Tailwind

colors: {
  custom: {
    50: '#84a0dc',
    500: '#3f7bcc',
    950: '#000000',
  },
}

SCSS

$custom: #3f7bcc;
$custom-light: #84a0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7bcc",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 204
  },
  "hsl": {
    "h": 214.468,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5825,
    "c": 0.13971,
    "h": 256.6
  },
  "luminance": 0.19582
}

Semantic roles & 50–950 ramp

primary

#3F7BCC

secondary

#D2B895

accent

#9F47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7BCC

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

Preview Lab → · Contrast checker → · Palette generator →