#3B87CB#3B87CB

#3B87CB is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 60.7% C 0.128 H 248.6°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#3B87CB
RGB	rgb(59, 135, 203)
HSL	hsl(208, 58%, 51%)
HSV	hsv(208, 71%, 80%)
CMYK	cmyk(70.9%, 33.5%, 0%, 20.4%)
CIE-LAB	lab(54.62, -0.98, -41.95)
CIE-LCH	lch(54.62, 41.96, 268.66°)
OKLab	oklab(60.75% -0.0467 -0.119)
OKLCH	oklch(60.75% 0.128 248.6)
XYZ	xyz(21.2430, 22.5672, 59.7247)
Luminance	0.2257 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B87CB #CB7F3B

analogous

#3BCBC7 #3B87CB #3B3FCB

triadic

#3B87CB #CB3B87 #87CB3B

tetradic

#3B87CB #C73BCB #CB7F3B #3FCB3B

square

#3B87CB #C73BCB #CB7F3B #3FCB3B

split-complementary

#3B87CB #CB3B3F #CBC73B

monochromatic

#1D486E #2A689F #3B87CB #6BA5D8 #9CC2E5

Accessibility & contrast

On white

3.81

#3B87CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#3B87CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B87CB

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B87CB	#FFFFFF	#000000	##000000
##3B87CB	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)

#688ACE

Deuteranopia (green-blind)

#547DCA

Tritanopia (blue-blind)

#0097A0

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3b87cb;
/* rgb */ color: rgb(59, 135, 203);
/* oklch */ color: oklch(60.7% 0.128 248.6);

Tailwind

colors: {
  custom: {
    50: '#82a9db',
    500: '#3b87cb',
    950: '#000000',
  },
}

SCSS

$custom: #3b87cb;
$custom-light: #82a9db;
$custom-dark: #000000;

JSON

{
  "hex": "#3b87cb",
  "rgb": {
    "r": 59,
    "g": 135,
    "b": 203
  },
  "hsl": {
    "h": 208.333,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.60746,
    "c": 0.12788,
    "h": 248.6
  },
  "luminance": 0.2257
}

Semantic roles & 50–950 ramp

primary

#3B87CB

secondary

#D1AF91

accent

#9047E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3B87CB

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

Preview Lab → · Contrast checker → · Palette generator →