#3774CB#3774CB

#3774CB is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.3% C 0.149 H 257.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3774CB
RGB	rgb(55, 116, 203)
HSL	hsl(215, 59%, 51%)
HSV	hsv(215, 73%, 80%)
CMYK	cmyk(72.9%, 42.9%, 0%, 20.4%)
CIE-LAB	lab(49.02, 10.00, -50.86)
CIE-LCH	lch(49.02, 51.83, 281.12°)
OKLab	oklab(56.34% -0.0317 -0.1455)
OKLCH	oklch(56.34% 0.149 257.7)
XYZ	xyz(18.5965, 17.6128, 58.9079)
Luminance	0.1762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774CB #CB8E37

analogous

#37BECB #3774CB #4437CB

triadic

#3774CB #CB3774 #74CB37

tetradic

#3774CB #CB37BE #CB8E37 #37CB44

square

#3774CB #CB37BE #CB8E37 #37CB44

split-complementary

#3774CB #CB4437 #BECB37

monochromatic

#1C3D6C #29589C #3774CB #6896D8 #98B8E4

Accessibility & contrast

On white

4.64

#3774CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3774CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3774CB

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774CB	#FFFFFF	#000000	##FFFFFF
##3774CB	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCE

Deuteranopia (green-blind)

#2F6EC9

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3774cb;
/* rgb */ color: rgb(55, 116, 203);
/* oklch */ color: oklch(56.3% 0.149 257.7);

Tailwind

colors: {
  custom: {
    50: '#809bdb',
    500: '#3774cb',
    950: '#000000',
  },
}

SCSS

$custom: #3774cb;
$custom-light: #809bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3774cb",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 203
  },
  "hsl": {
    "h": 215.27,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56338,
    "c": 0.14888,
    "h": 257.7
  },
  "luminance": 0.17615
}

Semantic roles & 50–950 ramp

primary

#3774CB

secondary

#D0B58E

accent

#A246E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3774CB

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

Preview Lab → · Contrast checker → · Palette generator →