#3754BD#3754BD

#3754BD is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.6% C 0.168 H 267.9°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#3754BD
RGB	rgb(55, 84, 189)
HSL	hsl(227, 55%, 48%)
HSV	hsv(227, 71%, 74%)
CMYK	cmyk(70.9%, 55.6%, 0%, 25.9%)
CIE-LAB	lab(39.29, 25.31, -58.45)
CIE-LCH	lch(39.29, 63.70, 293.41°)
OKLab	oklab(48.61% -0.0062 -0.1683)
OKLCH	oklch(48.61% 0.168 267.9)
XYZ	xyz(13.9280, 10.8256, 49.4898)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754BD #BDA037

analogous

#3797BD #3754BD #5D37BD

triadic

#3754BD #BD3754 #54BD37

tetradic

#3754BD #BD3797 #BDA037 #37BD5D

square

#3754BD #BD3797 #BDA037 #37BD5D

split-complementary

#3754BD #BD5D37 #97BD37

monochromatic

#1B2A5E #293F8E #3754BD #6079D1 #90A1DF

Accessibility & contrast

On white

6.63

#3754BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3754BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754BD

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754BD	#FFFFFF	#000000	##FFFFFF
##3754BD	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C1

Deuteranopia (green-blind)

#0057BB

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3754bd;
/* rgb */ color: rgb(55, 84, 189);
/* oklch */ color: oklch(48.6% 0.168 267.9);

Tailwind

colors: {
  custom: {
    50: '#7f83d2',
    500: '#3754bd',
    950: '#000000',
  },
}

SCSS

$custom: #3754bd;
$custom-light: #7f83d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3754bd",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 189
  },
  "hsl": {
    "h": 227.015,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48605,
    "c": 0.16845,
    "h": 267.9
  },
  "luminance": 0.10827
}

Semantic roles & 50–950 ramp

primary

#3754BD

secondary

#C9BB86

accent

#BE4ADE

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3754BD

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

Preview Lab → · Contrast checker → · Palette generator →