#3744A3#3744A3

#3744A3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.4% C 0.153 H 272.4°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#3744A3
RGB	rgb(55, 68, 163)
HSL	hsl(233, 50%, 43%)
HSV	hsv(233, 66%, 64%)
CMYK	cmyk(66.3%, 58.3%, 0%, 36.1%)
CIE-LAB	lab(33.11, 26.31, -53.06)
CIE-LCH	lch(33.11, 59.23, 296.37°)
OKLab	oklab(43.37% 0.0065 -0.1527)
OKLCH	oklch(43.37% 0.153 272.4)
XYZ	xyz(10.2513, 7.5899, 35.5680)
Luminance	0.0759 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3744A3 #A39637

analogous

#377AA3 #3744A3 #6037A3

triadic

#3744A3 #A33744 #44A337

tetradic

#3744A3 #A3377A #A39637 #37A360

square

#3744A3 #A3377A #A39637 #37A360

split-complementary

#3744A3 #A36037 #7AA337

monochromatic

#181E47 #283175 #3744A3 #5260C5 #808AD4

Accessibility & contrast

On white

8.34

#3744A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3744A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3744A3

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3744A3	#FFFFFF	#000000	##FFFFFF
##3744A3	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A6

Deuteranopia (green-blind)

#0049A1

Tritanopia (blue-blind)

#005B6D

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3744a3;
/* rgb */ color: rgb(55, 68, 163);
/* oklch */ color: oklch(43.4% 0.153 272.4);

Tailwind

colors: {
  custom: {
    50: '#7a77bf',
    500: '#3744a3',
    950: '#000000',
  },
}

SCSS

$custom: #3744a3;
$custom-light: #7a77bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3744a3",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 163
  },
  "hsl": {
    "h": 232.778,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.43366,
    "c": 0.15284,
    "h": 272.4
  },
  "luminance": 0.07591
}

Semantic roles & 50–950 ramp

primary

#3744A3

secondary

#BEB578

accent

#C84FD9

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3744A3

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

Preview Lab → · Contrast checker → · Palette generator →