#3774CE#3774CE

#3774CE is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.5% C 0.153 H 258.3°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3774CE
RGB	rgb(55, 116, 206)
HSL	hsl(216, 61%, 51%)
HSV	hsv(216, 73%, 81%)
CMYK	cmyk(73.3%, 43.7%, 0%, 19.2%)
CIE-LAB	lab(49.20, 11.10, -52.29)
CIE-LCH	lch(49.20, 53.45, 281.99°)
OKLab	oklab(56.53% -0.0311 -0.1497)
OKLCH	oklch(56.53% 0.153 258.3)
XYZ	xyz(18.9575, 17.7571, 60.8089)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774CE #CE9137

analogous

#37BFCE #3774CE #4537CE

triadic

#3774CE #CE3774 #74CE37

tetradic

#3774CE #CE37BF #CE9137 #37CE45

square

#3774CE #CE37BF #CE9137 #37CE45

split-complementary

#3774CE #CE4537 #BFCE37

monochromatic

#1B3D6F #2758A0 #3774CE #6896DA #99B8E6

Accessibility & contrast

On white

4.61

#3774CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3774CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3774CE

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774CE	#FFFFFF	#000000	##FFFFFF
##3774CE	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#477CD1

Deuteranopia (green-blind)

#2A6ECC

Tritanopia (blue-blind)

#008997

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3774ce;
/* rgb */ color: rgb(55, 116, 206);
/* oklch */ color: oklch(56.5% 0.153 258.3);

Tailwind

colors: {
  custom: {
    50: '#819bdd',
    500: '#3774ce',
    950: '#000000',
  },
}

SCSS

$custom: #3774ce;
$custom-light: #819bdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3774ce",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 206
  },
  "hsl": {
    "h": 215.762,
    "s": 60.643,
    "l": 51.176
  },
  "oklch": {
    "l": 0.56532,
    "c": 0.15287,
    "h": 258.3
  },
  "luminance": 0.17759
}

Semantic roles & 50–950 ramp

primary

#3774CE

secondary

#D2B78F

accent

#A344E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3774CE

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

Preview Lab → · Contrast checker → · Palette generator →