#3774DA#3774DA

#3774DA is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.3% C 0.169 H 260.1°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3774DA
RGB	rgb(55, 116, 218)
HSL	hsl(218, 69%, 54%)
HSV	hsv(218, 75%, 85%)
CMYK	cmyk(74.8%, 46.8%, 0%, 14.5%)
CIE-LAB	lab(49.93, 15.52, -57.93)
CIE-LCH	lch(49.93, 59.97, 285.00°)
OKLab	oklab(57.33% -0.029 -0.1663)
OKLCH	oklch(57.33% 0.169 260.1)
XYZ	xyz(20.4712, 18.3627, 68.7815)
Luminance	0.1837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774DA #DA9D37

analogous

#37C5DA #3774DA #4B37DA

triadic

#3774DA #DA3774 #74DA37

tetradic

#3774DA #DA37C5 #DA9D37 #37DA4B

square

#3774DA #DA37C5 #DA9D37 #37DA4B

split-complementary

#3774DA #DA4B37 #C5DA37

monochromatic

#183E7F #2158B3 #3774DA #6B98E4 #9EBCED

Accessibility & contrast

On white

4.49

#3774DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#3774DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3774DA

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774DA	#FFFFFF	#000000	##000000
##3774DA	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D7FDE

Deuteranopia (green-blind)

#0E70D8

Tritanopia (blue-blind)

#008C9C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3774da;
/* rgb */ color: rgb(55, 116, 218);
/* oklch */ color: oklch(57.3% 0.169 260.1);

Tailwind

colors: {
  custom: {
    50: '#839be6',
    500: '#3774da',
    950: '#000000',
  },
}

SCSS

$custom: #3774da;
$custom-light: #839be6;
$custom-dark: #000000;

JSON

{
  "hex": "#3774da",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 218
  },
  "hsl": {
    "h": 217.546,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.57333,
    "c": 0.16878,
    "h": 260.1
  },
  "luminance": 0.18365
}

Semantic roles & 50–950 ramp

primary

#3774DA

secondary

#D9BF93

accent

#AA3CEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3774DA

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

Preview Lab → · Contrast checker → · Palette generator →