#3874BB#3874BB

#3874BB is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.4% C 0.127 H 254.2°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#3874BB
RGB	rgb(56, 116, 187)
HSL	hsl(213, 54%, 48%)
HSV	hsv(213, 70%, 73%)
CMYK	cmyk(70.1%, 38%, 0%, 26.7%)
CIE-LAB	lab(48.16, 4.31, -43.05)
CIE-LCH	lch(48.16, 43.26, 275.71°)
OKLab	oklab(55.38% -0.0346 -0.1225)
OKLCH	oklch(55.38% 0.127 254.2)
XYZ	xyz(16.8426, 16.9176, 49.3819)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3874BB #BB7F38

analogous

#38B5BB #3874BB #3E38BB

triadic

#3874BB #BB3874 #74BB38

tetradic

#3874BB #BB38B5 #BB7F38 #38BB3E

square

#3874BB #BB38B5 #BB7F38 #38BB3E

split-complementary

#3874BB #BB3E38 #B5BB38

monochromatic

#1C3A5D #2A578C #3874BB #6193D0 #90B3DE

Accessibility & contrast

On white

4.79

#3874BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#3874BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3874BB

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3874BB	#FFFFFF	#000000	##FFFFFF
##3874BB	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5479BE

Deuteranopia (green-blind)

#406DBA

Tritanopia (blue-blind)

#00858E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3874bb;
/* rgb */ color: rgb(56, 116, 187);
/* oklch */ color: oklch(55.4% 0.127 254.2);

Tailwind

colors: {
  custom: {
    50: '#7e9bd0',
    500: '#3874bb',
    950: '#000000',
  },
}

SCSS

$custom: #3874bb;
$custom-light: #7e9bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3874bb",
  "rgb": {
    "r": 56,
    "g": 116,
    "b": 187
  },
  "hsl": {
    "h": 212.519,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.55381,
    "c": 0.12731,
    "h": 254.2
  },
  "luminance": 0.16919
}

Semantic roles & 50–950 ramp

primary

#3874BB

secondary

#C8AA86

accent

#9A4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3874BB

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

Preview Lab → · Contrast checker → · Palette generator →