#3F87C8#3F87C8

#3F87C8 is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 60.7% C 0.123 H 248.5°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3F87C8
RGB	rgb(63, 135, 200)
HSL	hsl(208, 55%, 52%)
HSV	hsv(208, 69%, 78%)
CMYK	cmyk(68.5%, 32.5%, 0%, 21.6%)
CIE-LAB	lab(54.61, -1.43, -40.27)
CIE-LCH	lch(54.61, 40.29, 267.97°)
OKLab	oklab(60.72% -0.045 -0.1141)
OKLCH	oklch(60.72% 0.123 248.5)
XYZ	xyz(21.1353, 22.5526, 57.8716)
Luminance	0.2256 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87C8 #C8803F

analogous

#3FC8C5 #3F87C8 #3F43C8

triadic

#3F87C8 #C83F87 #87C83F

tetradic

#3F87C8 #C53FC8 #C8803F #43C83F

square

#3F87C8 #C53FC8 #C8803F #43C83F

split-complementary

#3F87C8 #C83F43 #C8C53F

monochromatic

#1F486D #2D689D #3F87C8 #6FA5D6 #9EC2E3

Accessibility & contrast

On white

3.81

#3F87C8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#3F87C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87C8

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87C8	#FFFFFF	#000000	##000000
##3F87C8	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8ACB

Deuteranopia (green-blind)

#577DC7

Tritanopia (blue-blind)

#00969E

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f87c8;
/* rgb */ color: rgb(63, 135, 200);
/* oklch */ color: oklch(60.7% 0.123 248.5);

Tailwind

colors: {
  custom: {
    50: '#83a9d9',
    500: '#3f87c8',
    950: '#000000',
  },
}

SCSS

$custom: #3f87c8;
$custom-light: #83a9d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87c8",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 200
  },
  "hsl": {
    "h": 208.467,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.60723,
    "c": 0.12262,
    "h": 248.5
  },
  "luminance": 0.22555
}

Semantic roles & 50–950 ramp

primary

#3F87C8

secondary

#D0B093

accent

#9049DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3F87C8

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

Preview Lab → · Contrast checker → · Palette generator →