#3734A7#3734A7

#3734A7 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.9% C 0.178 H 276.2°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#3734A7
RGB	rgb(55, 52, 167)
HSL	hsl(242, 53%, 43%)
HSV	hsv(242, 69%, 65%)
CMYK	cmyk(67.1%, 68.9%, 0%, 34.5%)
CIE-LAB	lab(29.56, 37.90, -61.28)
CIE-LCH	lch(29.56, 72.05, 301.74°)
OKLab	oklab(40.86% 0.0193 -0.1769)
OKLCH	oklch(40.86% 0.178 276.2)
XYZ	xyz(9.7763, 6.0574, 37.2057)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.10

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3734A7 #A4A734

analogous

#346BA7 #3734A7 #7034A7

triadic

#3734A7 #A73734 #34A737

tetradic

#3734A7 #A7346B #A4A734 #34A770

square

#3734A7 #A7346B #A4A734 #34A770

split-complementary

#3734A7 #A77034 #6BA734

monochromatic

#18174A #282578 #3734A7 #5350C8 #817ED7

Accessibility & contrast

On white

9.50

#3734A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#3734A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3734A7

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3734A7	#FFFFFF	#000000	##FFFFFF
##3734A7	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BAB

Deuteranopia (green-blind)

#0041A5

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3734a7;
/* rgb */ color: rgb(55, 52, 167);
/* oklch */ color: oklch(40.9% 0.178 276.2);

Tailwind

colors: {
  custom: {
    50: '#7d6cc2',
    500: '#3734a7',
    950: '#000000',
  },
}

SCSS

$custom: #3734a7;
$custom-light: #7d6cc2;
$custom-dark: #000000;

JSON

{
  "hex": "#3734a7",
  "rgb": {
    "r": 55,
    "g": 52,
    "b": 167
  },
  "hsl": {
    "h": 241.565,
    "s": 52.511,
    "l": 42.941
  },
  "oklch": {
    "l": 0.40862,
    "c": 0.17796,
    "h": 276.2
  },
  "luminance": 0.06058
}

Semantic roles & 50–950 ramp

primary

#3734A7

secondary

#BEC077

accent

#DC4CD8

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3734A7

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

Preview Lab → · Contrast checker → · Palette generator →