#3774BB#3774BB

#3774BB is a mid, vivid cyan. Relative luminance 0.169; OKLCH L 55.3% C 0.128 H 254.0°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3774BB
RGB	rgb(55, 116, 187)
HSL	hsl(212, 55%, 47%)
HSV	hsv(212, 71%, 73%)
CMYK	cmyk(70.6%, 38%, 0%, 26.7%)
CIE-LAB	lab(48.12, 4.15, -43.11)
CIE-LCH	lch(48.12, 43.31, 275.50°)
OKLab	oklab(55.34% -0.0352 -0.1227)
OKLCH	oklch(55.34% 0.128 254)
XYZ	xyz(16.7873, 16.8891, 49.3793)
Luminance	0.1689 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774BB #BB7E37

analogous

#37B6BB #3774BB #3C37BB

triadic

#3774BB #BB3774 #74BB37

tetradic

#3774BB #BB37B6 #BB7E37 #37BB3C

square

#3774BB #BB37B6 #BB7E37 #37BB3C

split-complementary

#3774BB #BB3C37 #B6BB37

monochromatic

#1B395C #29578C #3774BB #5F93D0 #8EB3DE

Accessibility & contrast

On white

4.80

#3774BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#3774BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3774BB

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774BB	#FFFFFF	#000000	##FFFFFF
##3774BB	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	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: #3774bb;
/* rgb */ color: rgb(55, 116, 187);
/* oklch */ color: oklch(55.3% 0.128 254.0);

Tailwind

colors: {
  custom: {
    50: '#7d9bd0',
    500: '#3774bb',
    950: '#000000',
  },
}

SCSS

$custom: #3774bb;
$custom-light: #7d9bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3774bb",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 187
  },
  "hsl": {
    "h": 212.273,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.55343,
    "c": 0.12768,
    "h": 254
  },
  "luminance": 0.16891
}

Semantic roles & 50–950 ramp

primary

#3774BB

secondary

#C9A985

accent

#9A4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3774BB

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

Preview Lab → · Contrast checker → · Palette generator →