#3B91BB#3B91BB

#3B91BB is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.3% C 0.103 H 233.2°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3B91BB
RGB	rgb(59, 145, 187)
HSL	hsl(200, 52%, 48%)
HSV	hsv(200, 68%, 73%)
CMYK	cmyk(68.4%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(56.85, -12.23, -29.40)
CIE-LCH	lch(56.85, 31.84, 247.42°)
OKLab	oklab(62.27% -0.0618 -0.0825)
OKLCH	oklch(62.27% 0.103 233.2)
XYZ	xyz(20.8951, 24.7662, 50.6832)
Luminance	0.2477 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B91BB #BB653B

analogous

#3BBBA5 #3B91BB #3B51BB

triadic

#3B91BB #BB3B91 #91BB3B

tetradic

#3B91BB #A53BBB #BB653B #51BB3B

square

#3B91BB #A53BBB #BB653B #51BB3B

split-complementary

#3B91BB #BB3B51 #BBA53B

monochromatic

#1E495E #2C6D8C #3B91BB #65ACCE #93C5DD

Accessibility & contrast

On white

3.53

#3B91BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#3B91BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91BB

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B91BB	#FFFFFF	#000000	##000000
##3B91BB	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BD

Deuteranopia (green-blind)

#6B83BA

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3b91bb;
/* rgb */ color: rgb(59, 145, 187);
/* oklch */ color: oklch(62.3% 0.103 233.2);

Tailwind

colors: {
  custom: {
    50: '#80b1cf',
    500: '#3b91bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b91bb;
$custom-light: #80b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b91bb",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 199.688,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.62265,
    "c": 0.10311,
    "h": 233.2
  },
  "luminance": 0.24768
}

Semantic roles & 50–950 ramp

primary

#3B91BB

secondary

#C89E8A

accent

#7B4CDB

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3B91BB

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

Preview Lab → · Contrast checker → · Palette generator →