#3F87DC#3F87DC

#3F87DC is a mid, vivid cyan. Relative luminance 0.236; OKLCH L 61.9% C 0.148 H 254.4°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#3F87DC
RGB	rgb(63, 135, 220)
HSL	hsl(212, 69%, 55%)
HSV	hsv(212, 71%, 86%)
CMYK	cmyk(71.4%, 38.6%, 0%, 13.7%)
CIE-LAB	lab(55.63, 5.62, -49.92)
CIE-LCH	lch(55.63, 50.24, 276.42°)
OKLab	oklab(61.86% -0.0398 -0.1423)
OKLCH	oklch(61.86% 0.148 254.4)
XYZ	xyz(23.6274, 23.5494, 70.9965)
Luminance	0.2355 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87DC #DC943F

analogous

#3FD6DC #3F87DC #453FDC

triadic

#3F87DC #DC3F87 #87DC3F

tetradic

#3F87DC #DC3FD6 #DC943F #3FDC45

square

#3F87DC #DC3FD6 #DC943F #3FDC45

split-complementary

#3F87DC #DC453F #D6DC3F

monochromatic

#194C88 #2269BC #3F87DC #73A7E5 #A7C8EF

Accessibility & contrast

On white

3.68

#3F87DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#3F87DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87DC

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87DC	#FFFFFF	#000000	##000000
##3F87DC	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#608DDF

Deuteranopia (green-blind)

#477FDA

Tritanopia (blue-blind)

#009BA7

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f87dc;
/* rgb */ color: rgb(63, 135, 220);
/* oklch */ color: oklch(61.9% 0.148 254.4);

Tailwind

colors: {
  custom: {
    50: '#86a9e7',
    500: '#3f87dc',
    950: '#000000',
  },
}

SCSS

$custom: #3f87dc;
$custom-light: #86a9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87dc",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 220
  },
  "hsl": {
    "h": 212.484,
    "s": 69.163,
    "l": 55.49
  },
  "oklch": {
    "l": 0.61861,
    "c": 0.14777,
    "h": 254.4
  },
  "luminance": 0.23552
}

Semantic roles & 50–950 ramp

primary

#3F87DC

secondary

#DCBE9B

accent

#9B3CEC

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #3F87DC

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

Preview Lab → · Contrast checker → · Palette generator →