#3734A5#3734A5

#3734A5 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.7% C 0.175 H 276.4°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#3734A5
RGB	rgb(55, 52, 165)
HSL	hsl(242, 52%, 43%)
HSV	hsv(242, 68%, 65%)
CMYK	cmyk(66.7%, 68.5%, 0%, 35.3%)
CIE-LAB	lab(29.37, 37.23, -60.37)
CIE-LCH	lch(29.37, 70.93, 301.66°)
OKLab	oklab(40.67% 0.0195 -0.1743)
OKLCH	oklch(40.67% 0.175 276.4)
XYZ	xyz(9.5929, 5.9840, 36.2395)
Luminance	0.0599 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3734A5 #A2A534

analogous

#3469A5 #3734A5 #7034A5

triadic

#3734A5 #A53734 #34A537

tetradic

#3734A5 #A53469 #A2A534 #34A570

square

#3734A5 #A53469 #A2A534 #34A570

split-complementary

#3734A5 #A57034 #69A534

monochromatic

#181748 #272576 #3734A5 #524FC7 #807DD6

Accessibility & contrast

On white

9.56

#3734A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3734A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734A5

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734A5	#FFFFFF	#000000	##FFFFFF
##3734A5	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA8

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3734a5;
/* rgb */ color: rgb(55, 52, 165);
/* oklch */ color: oklch(40.7% 0.175 276.4);

Tailwind

colors: {
  custom: {
    50: '#7c6cc1',
    500: '#3734a5',
    950: '#000000',
  },
}

SCSS

$custom: #3734a5;
$custom-light: #7c6cc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3734a5",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 165
  },
  "hsl": {
    "h": 241.593,
    "s": 52.074,
    "l": 42.549
  },
  "oklch": {
    "l": 0.40672,
    "c": 0.17535,
    "h": 276.4
  },
  "luminance": 0.05985
}

Semantic roles & 50–950 ramp

primary

#3734A5

secondary

#BDBF76

accent

#DC4CD8

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3734A5

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

Preview Lab → · Contrast checker → · Palette generator →