#3891BB#3891BB

#3891BB is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.2% C 0.104 H 232.6°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#3891BB
RGB	rgb(56, 145, 187)
HSL	hsl(199, 54%, 48%)
HSV	hsv(199, 70%, 73%)
CMYK	cmyk(70.1%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(56.76, -12.68, -29.54)
CIE-LCH	lch(56.76, 32.15, 246.76°)
OKLab	oklab(62.17% -0.0635 -0.083)
OKLCH	oklch(62.17% 0.104 232.6)
XYZ	xyz(20.7224, 24.6771, 50.6751)
Luminance	0.2468 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3891BB #BB6238

analogous

#38BBA4 #3891BB #384FBB

triadic

#3891BB #BB3891 #91BB38

tetradic

#3891BB #A438BB #BB6238 #4FBB38

square

#3891BB #A438BB #BB6238 #4FBB38

split-complementary

#3891BB #BB384F #BBA438

monochromatic

#1C485D #2A6C8C #3891BB #61ACD0 #90C5DE

Accessibility & contrast

On white

3.54

#3891BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#3891BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3891BB

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3891BB	#FFFFFF	#000000	##000000
##3891BB	1.00	3.54	5.94	5.94
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBD

Deuteranopia (green-blind)

#6A82BA

Tritanopia (blue-blind)

#009C9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3891bb;
/* rgb */ color: rgb(56, 145, 187);
/* oklch */ color: oklch(62.2% 0.104 232.6);

Tailwind

colors: {
  custom: {
    50: '#7fb1cf',
    500: '#3891bb',
    950: '#000000',
  },
}

SCSS

$custom: #3891bb;
$custom-light: #7fb1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3891bb",
  "rgb": {
    "r": 56,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 199.237,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.62171,
    "c": 0.10449,
    "h": 232.6
  },
  "luminance": 0.24679
}

Semantic roles & 50–950 ramp

primary

#3891BB

secondary

#C89C86

accent

#7A4BDD

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3891BB

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

Preview Lab → · Contrast checker → · Palette generator →