#3F87D3#3F87D3

#3F87D3 is a mid, vivid cyan. Relative luminance 0.231; OKLCH L 61.3% C 0.136 H 252.0°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#3F87D3
RGB	rgb(63, 135, 211)
HSL	hsl(211, 63%, 54%)
HSV	hsv(211, 70%, 83%)
CMYK	cmyk(70.1%, 36%, 0%, 17.3%)
CIE-LAB	lab(55.16, 2.43, -45.61)
CIE-LCH	lch(55.16, 45.68, 273.05°)
OKLab	oklab(61.34% -0.042 -0.1297)
OKLCH	oklch(61.34% 0.136 252)
XYZ	xyz(22.4674, 23.0854, 64.8872)
Luminance	0.2309 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87D3 #D38B3F

analogous

#3FD1D3 #3F87D3 #413FD3

triadic

#3F87D3 #D33F87 #87D33F

tetradic

#3F87D3 #D33FD1 #D38B3F #3FD341

square

#3F87D3 #D33FD1 #D38B3F #3FD341

split-complementary

#3F87D3 #D3413F #D1D33F

monochromatic

#1C4B7B #2869AD #3F87D3 #71A6DE #A3C5EA

Accessibility & contrast

On white

3.74

#3F87D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#3F87D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87D3

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87D3	#FFFFFF	#000000	##000000
##3F87D3	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#658CD6

Deuteranopia (green-blind)

#4F7ED1

Tritanopia (blue-blind)

#0099A3

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f87d3;
/* rgb */ color: rgb(63, 135, 211);
/* oklch */ color: oklch(61.3% 0.136 252.0);

Tailwind

colors: {
  custom: {
    50: '#85a9e1',
    500: '#3f87d3',
    950: '#000000',
  },
}

SCSS

$custom: #3f87d3;
$custom-light: #85a9e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87d3",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 211
  },
  "hsl": {
    "h": 210.811,
    "s": 62.712,
    "l": 53.725
  },
  "oklch": {
    "l": 0.61337,
    "c": 0.13632,
    "h": 252
  },
  "luminance": 0.23088
}

Semantic roles & 50–950 ramp

primary

#3F87D3

secondary

#D7B897

accent

#9642E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F87D3

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

Preview Lab → · Contrast checker → · Palette generator →