#3B87BC#3B87BC

#3B87BC is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.9% C 0.110 H 242.3°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3B87BC
RGB	rgb(59, 135, 188)
HSL	hsl(205, 52%, 48%)
HSV	hsv(205, 69%, 74%)
CMYK	cmyk(68.6%, 28.2%, 0%, 26.3%)
CIE-LAB	lab(53.91, -6.22, -34.55)
CIE-LCH	lch(53.91, 35.11, 259.80°)
OKLab	oklab(59.95% -0.0512 -0.0975)
OKLCH	oklch(59.95% 0.11 242.3)
XYZ	xyz(19.5412, 21.8865, 50.7619)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B87BC #BC703B

analogous

#3BBCB0 #3B87BC #3B46BC

triadic

#3B87BC #BC3B87 #87BC3B

tetradic

#3B87BC #B03BBC #BC703B #46BC3B

square

#3B87BC #B03BBC #BC703B #46BC3B

split-complementary

#3B87BC #BC3B46 #BCB03B

monochromatic

#1E445F #2C668D #3B87BC #65A3CF #94BFDD

Accessibility & contrast

On white

3.90

#3B87BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3B87BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B87BC

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B87BC	#FFFFFF	#000000	##000000
##3B87BC	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F88BE

Deuteranopia (green-blind)

#5D7BBB

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3b87bc;
/* rgb */ color: rgb(59, 135, 188);
/* oklch */ color: oklch(59.9% 0.110 242.3);

Tailwind

colors: {
  custom: {
    50: '#7fa9d0',
    500: '#3b87bc',
    950: '#000000',
  },
}

SCSS

$custom: #3b87bc;
$custom-light: #7fa9d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b87bc",
  "rgb": {
    "r": 59,
    "g": 135,
    "b": 188
  },
  "hsl": {
    "h": 204.651,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.59945,
    "c": 0.11013,
    "h": 242.3
  },
  "luminance": 0.21889
}

Semantic roles & 50–950 ramp

primary

#3B87BC

secondary

#C9A48A

accent

#874CDC

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3B87BC

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

Preview Lab → · Contrast checker → · Palette generator →