#3F87BE#3F87BE

#3F87BE is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.2% C 0.111 H 244.3°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3F87BE
RGB	rgb(63, 135, 190)
HSL	hsl(206, 50%, 50%)
HSV	hsv(206, 67%, 75%)
CMYK	cmyk(66.8%, 28.9%, 0%, 25.5%)
CIE-LAB	lab(54.13, -4.88, -35.33)
CIE-LCH	lch(54.13, 35.66, 262.13°)
OKLab	oklab(60.19% -0.048 -0.0997)
OKLCH	oklch(60.19% 0.111 244.3)
XYZ	xyz(20.0046, 22.1003, 51.9167)
Luminance	0.2210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87BE #BE763F

analogous

#3FBEB6 #3F87BE #3F48BE

triadic

#3F87BE #BE3F87 #87BE3F

tetradic

#3F87BE #B63FBE #BE763F #48BE3F

square

#3F87BE #B63FBE #BE763F #48BE3F

split-complementary

#3F87BE #BE3F48 #BEB63F

monochromatic

#214662 #306690 #3F87BE #6CA4CE #9AC0DD

Accessibility & contrast

On white

3.87

#3F87BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#3F87BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87BE

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87BE	#FFFFFF	#000000	##000000
##3F87BE	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E88C0

Deuteranopia (green-blind)

#5D7CBD

Tritanopia (blue-blind)

#00949A

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f87be;
/* rgb */ color: rgb(63, 135, 190);
/* oklch */ color: oklch(60.2% 0.111 244.3);

Tailwind

colors: {
  custom: {
    50: '#81a9d2',
    500: '#3f87be',
    950: '#000000',
  },
}

SCSS

$custom: #3f87be;
$custom-light: #81a9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87be",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 190
  },
  "hsl": {
    "h": 205.984,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.60193,
    "c": 0.11066,
    "h": 244.3
  },
  "luminance": 0.22102
}

Semantic roles & 50–950 ramp

primary

#3F87BE

secondary

#C9A98F

accent

#8B4EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F87BE

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

Preview Lab → · Contrast checker → · Palette generator →