#3774D9#3774D9

#3774D9 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.3% C 0.167 H 260.0°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3774D9
RGB	rgb(55, 116, 217)
HSL	hsl(217, 68%, 53%)
HSV	hsv(217, 75%, 85%)
CMYK	cmyk(74.7%, 46.5%, 0%, 14.9%)
CIE-LAB	lab(49.87, 15.15, -57.46)
CIE-LCH	lch(49.87, 59.43, 284.77°)
OKLab	oklab(57.27% -0.0292 -0.1649)
OKLCH	oklch(57.27% 0.167 260)
XYZ	xyz(20.3408, 18.3105, 68.0944)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774D9 #D99C37

analogous

#37C5D9 #3774D9 #4B37D9

triadic

#3774D9 #D93774 #74D937

tetradic

#3774D9 #D937C5 #D99C37 #37D94B

square

#3774D9 #D937C5 #D99C37 #37D94B

split-complementary

#3774D9 #D94B37 #C5D937

monochromatic

#183E7E #2258B1 #3774D9 #6A98E3 #9EBBED

Accessibility & contrast

On white

4.50

#3774D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#3774D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3774D9

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774D9	#FFFFFF	#000000	##000000
##3774D9	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E7FDD

Deuteranopia (green-blind)

#1270D7

Tritanopia (blue-blind)

#008C9C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3774d9;
/* rgb */ color: rgb(55, 116, 217);
/* oklch */ color: oklch(57.3% 0.167 260.0);

Tailwind

colors: {
  custom: {
    50: '#839be5',
    500: '#3774d9',
    950: '#000000',
  },
}

SCSS

$custom: #3774d9;
$custom-light: #839be5;
$custom-dark: #000000;

JSON

{
  "hex": "#3774d9",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 217
  },
  "hsl": {
    "h": 217.407,
    "s": 68.067,
    "l": 53.333
  },
  "oklch": {
    "l": 0.57265,
    "c": 0.16745,
    "h": 260
  },
  "luminance": 0.18313
}

Semantic roles & 50–950 ramp

primary

#3774D9

secondary

#D9BE93

accent

#A93DEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3774D9

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

Preview Lab → · Contrast checker → · Palette generator →