#3754AB#3754AB

#3754AB is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.2% C 0.143 H 266.9°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#3754AB
RGB	rgb(55, 84, 171)
HSL	hsl(225, 51%, 44%)
HSV	hsv(225, 68%, 67%)
CMYK	cmyk(67.8%, 50.9%, 0%, 32.9%)
CIE-LAB	lab(38.01, 18.70, -49.92)
CIE-LCH	lch(38.01, 53.31, 290.53°)
OKLab	oklab(47.23% -0.0077 -0.1432)
OKLCH	oklch(47.23% 0.143 266.9)
XYZ	xyz(12.0940, 10.0920, 39.8308)
Luminance	0.1009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754AB #AB8E37

analogous

#378EAB #3754AB #5437AB

triadic

#3754AB #AB3754 #54AB37

tetradic

#3754AB #AB378E #AB8E37 #37AB54

square

#3754AB #AB378E #AB8E37 #37AB54

split-complementary

#3754AB #AB5437 #8EAB37

monochromatic

#19274E #283D7D #3754AB #5673C9 #8599D8

Accessibility & contrast

On white

6.96

#3754AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3754AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754AB

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754AB	#FFFFFF	#000000	##FFFFFF
##3754AB	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#225FAE

Deuteranopia (green-blind)

#0054A9

Tritanopia (blue-blind)

#006877

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3754ab;
/* rgb */ color: rgb(55, 84, 171);
/* oklch */ color: oklch(47.2% 0.143 266.9);

Tailwind

colors: {
  custom: {
    50: '#7b83c5',
    500: '#3754ab',
    950: '#000000',
  },
}

SCSS

$custom: #3754ab;
$custom-light: #7b83c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3754ab",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 171
  },
  "hsl": {
    "h": 225,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.47233,
    "c": 0.14344,
    "h": 266.9
  },
  "luminance": 0.10093
}

Semantic roles & 50–950 ramp

primary

#3754AB

secondary

#C1B07C

accent

#B74DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3754AB

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

Preview Lab → · Contrast checker → · Palette generator →