#3B91BC#3B91BC

#3B91BC is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.3% C 0.104 H 233.8°. Best body text is #000000 at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3B91BC
RGB	rgb(59, 145, 188)
HSL	hsl(200, 52%, 48%)
HSV	hsv(200, 69%, 74%)
CMYK	cmyk(68.6%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(56.89, -11.89, -29.90)
CIE-LCH	lch(56.89, 32.18, 248.31°)
OKLab	oklab(62.31% -0.0615 -0.084)
OKLCH	oklch(62.31% 0.104 233.8)
XYZ	xyz(21.0026, 24.8092, 51.2490)
Luminance	0.2481 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B91BC #BC663B

analogous

#3BBCA6 #3B91BC #3B50BC

triadic

#3B91BC #BC3B91 #91BC3B

tetradic

#3B91BC #A63BBC #BC663B #50BC3B

square

#3B91BC #A63BBC #BC663B #50BC3B

split-complementary

#3B91BC #BC3B50 #BCA63B

monochromatic

#1E495F #2C6D8D #3B91BC #65ACCF #94C5DD

Accessibility & contrast

On white

3.52

#3B91BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.96

#3B91BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91BC

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B91BC	#FFFFFF	#000000	##000000
##3B91BC	1.00	3.52	5.96	5.96
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.96	21.00	1.00	1.00
##000000	5.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C90BE

Deuteranopia (green-blind)

#6A83BB

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3b91bc;
/* rgb */ color: rgb(59, 145, 188);
/* oklch */ color: oklch(62.3% 0.104 233.8);

Tailwind

colors: {
  custom: {
    50: '#80b1d0',
    500: '#3b91bc',
    950: '#000000',
  },
}

SCSS

$custom: #3b91bc;
$custom-light: #80b1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b91bc",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 200,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.62312,
    "c": 0.10406,
    "h": 233.8
  },
  "luminance": 0.24811
}

Semantic roles & 50–950 ramp

primary

#3B91BC

secondary

#C99F8A

accent

#7C4CDC

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3B91BC

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

Preview Lab → · Contrast checker → · Palette generator →