#3754C7#3754C7

#3754C7 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.4% C 0.182 H 268.2°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#3754C7
RGB	rgb(55, 84, 199)
HSL	hsl(228, 57%, 50%)
HSV	hsv(228, 72%, 78%)
CMYK	cmyk(72.4%, 57.8%, 0%, 22%)
CIE-LAB	lab(40.04, 28.96, -63.05)
CIE-LCH	lch(40.04, 69.38, 294.67°)
OKLab	oklab(49.41% -0.0058 -0.1819)
OKLCH	oklch(49.41% 0.182 268.2)
XYZ	xyz(15.0511, 11.2748, 55.4048)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754C7 #C7AA37

analogous

#379CC7 #3754C7 #6237C7

triadic

#3754C7 #C73754 #54C737

tetradic

#3754C7 #C7379C #C7AA37 #37C762

square

#3754C7 #C7379C #C7AA37 #37C762

split-complementary

#3754C7 #C76237 #9CC737

monochromatic

#1C2C67 #2A4097 #3754C7 #667DD5 #96A6E2

Accessibility & contrast

On white

6.45

#3754C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#3754C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754C7

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754C7	#FFFFFF	#000000	##FFFFFF
##3754C7	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CB

Deuteranopia (green-blind)

#0058C5

Tritanopia (blue-blind)

#007185

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3754c7;
/* rgb */ color: rgb(55, 84, 199);
/* oklch */ color: oklch(49.4% 0.182 268.2);

Tailwind

colors: {
  custom: {
    50: '#8183d9',
    500: '#3754c7',
    950: '#000000',
  },
}

SCSS

$custom: #3754c7;
$custom-light: #8183d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3754c7",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 199
  },
  "hsl": {
    "h": 227.917,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.49407,
    "c": 0.18195,
    "h": 268.2
  },
  "luminance": 0.11276
}

Semantic roles & 50–950 ramp

primary

#3754C7

secondary

#CDC08C

accent

#C148E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3754C7

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

Preview Lab → · Contrast checker → · Palette generator →