#3F7ACC#3F7ACC

#3F7ACC is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 58.0% C 0.141 H 257.1°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ACC
RGB	rgb(63, 122, 204)
HSL	hsl(215, 58%, 52%)
HSV	hsv(215, 69%, 80%)
CMYK	cmyk(69.1%, 40.2%, 0%, 20%)
CIE-LAB	lab(51.08, 7.81, -48.14)
CIE-LCH	lch(51.08, 48.77, 279.21°)
OKLab	oklab(58.03% -0.0314 -0.1373)
OKLCH	oklch(58.03% 0.141 257.1)
XYZ	xyz(19.9046, 19.3334, 59.7978)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ACC #CC913F

analogous

#3FC0CC #3F7ACC #4B3FCC

triadic

#3F7ACC #CC3F7A #7ACC3F

tetradic

#3F7ACC #CC3FC0 #CC913F #3FCC4B

square

#3F7ACC #CC3FC0 #CC913F #3FCC4B

split-complementary

#3F7ACC #CC4B3F #C0CC3F

monochromatic

#1E4172 #2B5DA3 #3F7ACC #6F9BD9 #A0BDE6

Accessibility & contrast

On white

4.31

#3F7ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#3F7ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ACC

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ACC	#FFFFFF	#000000	##000000
##3F7ACC	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5481CF

Deuteranopia (green-blind)

#3E74CA

Tritanopia (blue-blind)

#008D99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7acc;
/* rgb */ color: rgb(63, 122, 204);
/* oklch */ color: oklch(58.0% 0.141 257.1);

Tailwind

colors: {
  custom: {
    50: '#849fdc',
    500: '#3f7acc',
    950: '#000000',
  },
}

SCSS

$custom: #3f7acc;
$custom-light: #849fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7acc",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 204
  },
  "hsl": {
    "h": 214.894,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58029,
    "c": 0.14079,
    "h": 257.1
  },
  "luminance": 0.19335
}

Semantic roles & 50–950 ramp

primary

#3F7ACC

secondary

#D2B895

accent

#A147E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7ACC

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

Preview Lab → · Contrast checker → · Palette generator →