#3B91DD#3B91DD

#3B91DD is a light, vivid cyan. Relative luminance 0.264; OKLCH L 64.0% C 0.141 H 248.7°. Best body text is #000000 at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#3B91DD
RGB	rgb(59, 145, 221)
HSL	hsl(208, 70%, 55%)
HSV	hsv(208, 73%, 87%)
CMYK	cmyk(73.3%, 34.4%, 0%, 13.3%)
CIE-LAB	lab(58.41, -0.49, -46.08)
CIE-LCH	lch(58.41, 46.09, 269.39°)
OKLab	oklab(64.02% -0.0512 -0.131)
OKLCH	oklch(64.02% 0.141 248.7)
XYZ	xyz(24.9752, 26.3982, 72.1717)
Luminance	0.2640 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B91DD #DD873B

analogous

#3BDDD8 #3B91DD #3B40DD

triadic

#3B91DD #DD3B91 #91DD3B

tetradic

#3B91DD #D83BDD #DD873B #40DD3B

square

#3B91DD #D83BDD #DD873B #40DD3B

split-complementary

#3B91DD #DD3B40 #DDD83B

monochromatic

#175286 #2072BA #3B91DD #6FAEE6 #A3CCEF

Accessibility & contrast

On white

3.34

#3B91DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.28

#3B91DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91DD

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B91DD	#FFFFFF	#000000	##000000
##3B91DD	1.00	3.34	6.28	6.28
#FFFFFF	3.34	1.00	21.00	21.00
#000000	6.28	21.00	1.00	1.00
##000000	6.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E95E0

Deuteranopia (green-blind)

#5786DC

Tritanopia (blue-blind)

#00A3AD

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #3b91dd;
/* rgb */ color: rgb(59, 145, 221);
/* oklch */ color: oklch(64.0% 0.141 248.7);

Tailwind

colors: {
  custom: {
    50: '#85b0e8',
    500: '#3b91dd',
    950: '#000000',
  },
}

SCSS

$custom: #3b91dd;
$custom-light: #85b0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3b91dd",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 221
  },
  "hsl": {
    "h": 208.148,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.64018,
    "c": 0.14061,
    "h": 248.7
  },
  "luminance": 0.26401
}

Semantic roles & 50–950 ramp

primary

#3B91DD

secondary

#DCB898

accent

#8E3BED

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3B91DD

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

Preview Lab → · Contrast checker → · Palette generator →