#3F87CF#3F87CF

#3F87CF is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.1% C 0.131 H 250.8°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F87CF
RGB	rgb(63, 135, 207)
HSL	hsl(210, 60%, 53%)
HSV	hsv(210, 70%, 81%)
CMYK	cmyk(69.6%, 34.8%, 0%, 18.8%)
CIE-LAB	lab(54.96, 1.02, -43.68)
CIE-LCH	lch(54.96, 43.69, 271.34°)
OKLab	oklab(61.11% -0.0431 -0.124)
OKLCH	oklch(61.11% 0.131 250.8)
XYZ	xyz(21.9722, 22.8873, 62.2791)
Luminance	0.2289 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87CF #CF873F

analogous

#3FCFCF #3F87CF #3F3FCF

triadic

#3F87CF #CF3F87 #87CF3F

tetradic

#3F87CF #CF3FCF #CF873F #3FCF3F

square

#3F87CF #CF3FCF #CF873F #3FCF3F

split-complementary

#3F87CF #CF3F3F #CFCF3F

monochromatic

#1E4A76 #2A68A7 #3F87CF #70A6DB #A1C4E7

Accessibility & contrast

On white

3.76

#3F87CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#3F87CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87CF

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87CF	#FFFFFF	#000000	##000000
##3F87CF	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678BD2

Deuteranopia (green-blind)

#527DCE

Tritanopia (blue-blind)

#0098A1

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f87cf;
/* rgb */ color: rgb(63, 135, 207);
/* oklch */ color: oklch(61.1% 0.131 250.8);

Tailwind

colors: {
  custom: {
    50: '#84a9de',
    500: '#3f87cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f87cf;
$custom-light: #84a9de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87cf",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 207
  },
  "hsl": {
    "h": 210,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.6111,
    "c": 0.1313,
    "h": 250.8
  },
  "luminance": 0.2289
}

Semantic roles & 50–950 ramp

primary

#3F87CF

secondary

#D4B596

accent

#9445E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F87CF

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

Preview Lab → · Contrast checker → · Palette generator →