#3774D0#3774D0

#3774D0 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.7% C 0.156 H 258.6°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3774D0
RGB	rgb(55, 116, 208)
HSL	hsl(216, 62%, 52%)
HSV	hsv(216, 74%, 82%)
CMYK	cmyk(73.6%, 44.2%, 0%, 18.4%)
CIE-LAB	lab(49.32, 11.84, -53.24)
CIE-LCH	lch(49.32, 54.54, 282.53°)
OKLab	oklab(56.66% -0.0307 -0.1524)
OKLCH	oklch(56.66% 0.156 258.6)
XYZ	xyz(19.2020, 17.8549, 62.0966)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774D0 #D09337

analogous

#37C1D0 #3774D0 #4737D0

triadic

#3774D0 #D03774 #74D037

tetradic

#3774D0 #D037C1 #D09337 #37D047

square

#3774D0 #D037C1 #D09337 #37D047

split-complementary

#3774D0 #D04737 #C1D037

monochromatic

#1B3D72 #2658A3 #3774D0 #6996DC #9AB9E7

Accessibility & contrast

On white

4.59

#3774D0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#3774D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3774D0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774D0	#FFFFFF	#000000	##FFFFFF
##3774D0	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#467DD4

Deuteranopia (green-blind)

#276FCE

Tritanopia (blue-blind)

#008A98

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3774d0;
/* rgb */ color: rgb(55, 116, 208);
/* oklch */ color: oklch(56.7% 0.156 258.6);

Tailwind

colors: {
  custom: {
    50: '#819bdf',
    500: '#3774d0',
    950: '#000000',
  },
}

SCSS

$custom: #3774d0;
$custom-light: #819bdf;
$custom-dark: #000000;

JSON

{
  "hex": "#3774d0",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 208
  },
  "hsl": {
    "h": 216.078,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56663,
    "c": 0.15552,
    "h": 258.6
  },
  "luminance": 0.17857
}

Semantic roles & 50–950 ramp

primary

#3774D0

secondary

#D3B890

accent

#A443E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3774D0

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

Preview Lab → · Contrast checker → · Palette generator →