#3F87BA#3F87BA

#3F87BA is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 60.0% C 0.106 H 242.3°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3F87BA
RGB	rgb(63, 135, 186)
HSL	hsl(205, 49%, 49%)
HSV	hsv(205, 66%, 73%)
CMYK	cmyk(66.1%, 27.4%, 0%, 27.1%)
CIE-LAB	lab(53.95, -6.25, -33.33)
CIE-LCH	lch(53.95, 33.91, 259.39°)
OKLab	oklab(59.99% -0.0493 -0.0939)
OKLCH	oklch(59.99% 0.106 242.3)
XYZ	xyz(19.5734, 21.9279, 49.6458)
Luminance	0.2193 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87BA #BA723F

analogous

#3FBAB0 #3F87BA #3F4ABA

triadic

#3F87BA #BA3F87 #87BA3F

tetradic

#3F87BA #B03FBA #BA723F #4ABA3F

square

#3F87BA #B03FBA #BA723F #4ABA3F

split-complementary

#3F87BA #BA3F4A #BAB03F

monochromatic

#20455F #30668C #3F87BA #6AA4CC #97C0DC

Accessibility & contrast

On white

3.90

#3F87BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3F87BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87BA

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87BA	#FFFFFF	#000000	##000000
##3F87BA	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7088BC

Deuteranopia (green-blind)

#5F7CB9

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f87ba;
/* rgb */ color: rgb(63, 135, 186);
/* oklch */ color: oklch(60.0% 0.106 242.3);

Tailwind

colors: {
  custom: {
    50: '#81a9cf',
    500: '#3f87ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f87ba;
$custom-light: #81a9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87ba",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 186
  },
  "hsl": {
    "h": 204.878,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.59988,
    "c": 0.10605,
    "h": 242.3
  },
  "luminance": 0.2193
}

Semantic roles & 50–950 ramp

primary

#3F87BA

secondary

#C8A58D

accent

#884FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F87BA

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

Preview Lab → · Contrast checker → · Palette generator →