#3F87D0#3F87D0

#3F87D0 is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.2% C 0.133 H 251.2°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3F87D0
RGB	rgb(63, 135, 208)
HSL	hsl(210, 61%, 53%)
HSV	hsv(210, 70%, 82%)
CMYK	cmyk(69.7%, 35.1%, 0%, 18.4%)
CIE-LAB	lab(55.01, 1.37, -44.17)
CIE-LCH	lch(55.01, 44.19, 271.78°)
OKLab	oklab(61.17% -0.0428 -0.1254)
OKLCH	oklch(61.17% 0.133 251.2)
XYZ	xyz(22.0948, 22.9364, 62.9250)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87D0 #D0883F

analogous

#3FCFD0 #3F87D0 #3F3FD0

triadic

#3F87D0 #D03F87 #87D03F

tetradic

#3F87D0 #D03FCF #D0883F #3FD03F

square

#3F87D0 #D03FCF #D0883F #3FD03F

split-complementary

#3F87D0 #D03F3F #CFD03F

monochromatic

#1D4A77 #2968A9 #3F87D0 #70A6DC #A1C4E8

Accessibility & contrast

On white

3.76

#3F87D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#3F87D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87D0

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87D0	#FFFFFF	#000000	##000000
##3F87D0	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#668BD3

Deuteranopia (green-blind)

#517DCF

Tritanopia (blue-blind)

#0098A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #3f87d0;
/* rgb */ color: rgb(63, 135, 208);
/* oklch */ color: oklch(61.2% 0.133 251.2);

Tailwind

colors: {
  custom: {
    50: '#84a9df',
    500: '#3f87d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f87d0;
$custom-light: #84a9df;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87d0",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 208
  },
  "hsl": {
    "h": 210.207,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.61166,
    "c": 0.13255,
    "h": 251.2
  },
  "luminance": 0.22939
}

Semantic roles & 50–950 ramp

primary

#3F87D0

secondary

#D5B696

accent

#9444E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F87D0

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

Preview Lab → · Contrast checker → · Palette generator →