#3774E0#3774E0

#3774E0 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.7% C 0.177 H 260.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#3774E0
RGB	rgb(55, 116, 224)
HSL	hsl(218, 73%, 55%)
HSV	hsv(218, 75%, 88%)
CMYK	cmyk(75.4%, 48.2%, 0%, 12.2%)
CIE-LAB	lab(50.31, 17.73, -60.71)
CIE-LCH	lch(50.31, 63.24, 286.28°)
OKLab	oklab(57.75% -0.0281 -0.1744)
OKLCH	oklch(57.75% 0.177 260.8)
XYZ	xyz(21.2706, 18.6824, 72.9916)
Luminance	0.1868 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774E0 #E0A337

analogous

#37C9E0 #3774E0 #4F37E0

triadic

#3774E0 #E03774 #74E037

tetradic

#3774E0 #E037C9 #E0A337 #37E04F

square

#3774E0 #E037C9 #E0A337 #37E04F

split-complementary

#3774E0 #E04F37 #C9E037

monochromatic

#153E88 #1D57BD #3774E0 #6C99E8 #A1BEF0

Accessibility & contrast

On white

4.43

#3774E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#3774E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3774E0

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774E0	#FFFFFF	#000000	##000000
##3774E0	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3680E4

Deuteranopia (green-blind)

#0070DE

Tritanopia (blue-blind)

#008E9F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3774e0;
/* rgb */ color: rgb(55, 116, 224);
/* oklch */ color: oklch(57.7% 0.177 260.8);

Tailwind

colors: {
  custom: {
    50: '#859bea',
    500: '#3774e0',
    950: '#000000',
  },
}

SCSS

$custom: #3774e0;
$custom-light: #859bea;
$custom-dark: #000000;

JSON

{
  "hex": "#3774e0",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 224
  },
  "hsl": {
    "h": 218.343,
    "s": 73.16,
    "l": 54.706
  },
  "oklch": {
    "l": 0.57747,
    "c": 0.17668,
    "h": 260.8
  },
  "luminance": 0.18685
}

Semantic roles & 50–950 ramp

primary

#3774E0

secondary

#DDC396

accent

#AD38F0

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #3774E0

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

Preview Lab → · Contrast checker → · Palette generator →