#3437A5#3437A5

#3437A5 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.0% C 0.173 H 274.5°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#3437A5
RGB	rgb(52, 55, 165)
HSL	hsl(238, 52%, 43%)
HSV	hsv(238, 68%, 65%)
CMYK	cmyk(68.5%, 66.7%, 0%, 35.3%)
CIE-LAB	lab(29.86, 34.96, -59.59)
CIE-LCH	lch(29.86, 69.09, 300.40°)
OKLab	oklab(40.97% 0.0136 -0.172)
OKLCH	oklch(40.97% 0.173 274.5)
XYZ	xyz(9.5716, 6.1782, 36.2781)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.47

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3437A5 #A5A234

analogous

#3470A5 #3437A5 #6934A5

triadic

#3437A5 #A53437 #37A534

tetradic

#3437A5 #A53470 #A5A234 #34A569

square

#3437A5 #A53470 #A5A234 #34A569

split-complementary

#3437A5 #A56934 #70A534

monochromatic

#171848 #252776 #3437A5 #4F52C7 #7D80D6

Accessibility & contrast

On white

9.39

#3437A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#3437A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437A5

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437A5	#FFFFFF	#000000	##FFFFFF
##3437A5	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA8

Deuteranopia (green-blind)

#0041A3

Tritanopia (blue-blind)

#005469

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3437a5;
/* rgb */ color: rgb(52, 55, 165);
/* oklch */ color: oklch(41.0% 0.173 274.5);

Tailwind

colors: {
  custom: {
    50: '#7b6ec1',
    500: '#3437a5',
    950: '#000000',
  },
}

SCSS

$custom: #3437a5;
$custom-light: #7b6ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#3437a5",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 165
  },
  "hsl": {
    "h": 238.407,
    "s": 52.074,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4097,
    "c": 0.17257,
    "h": 274.5
  },
  "luminance": 0.06179
}

Semantic roles & 50–950 ramp

primary

#3437A5

secondary

#BFBD76

accent

#D84CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3437A5

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

Preview Lab → · Contrast checker → · Palette generator →