#3437A7#3437A7

#3437A7 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 41.2% C 0.175 H 274.4°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#3437A7
RGB	rgb(52, 55, 167)
HSL	hsl(238, 53%, 43%)
HSV	hsv(238, 69%, 65%)
CMYK	cmyk(68.9%, 67.1%, 0%, 34.5%)
CIE-LAB	lab(30.04, 35.66, -60.49)
CIE-LCH	lch(30.04, 70.22, 300.52°)
OKLab	oklab(41.16% 0.0134 -0.1747)
OKLCH	oklch(41.16% 0.175 274.4)
XYZ	xyz(9.7551, 6.2516, 37.2443)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.24

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3437A7 #A7A434

analogous

#3470A7 #3437A7 #6B34A7

triadic

#3437A7 #A73437 #37A734

tetradic

#3437A7 #A73470 #A7A434 #34A76B

square

#3437A7 #A73470 #A7A434 #34A76B

split-complementary

#3437A7 #A76B34 #70A734

monochromatic

#17184A #252878 #3437A7 #5053C8 #7E81D7

Accessibility & contrast

On white

9.33

#3437A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3437A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3437A7

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3437A7	#FFFFFF	#000000	##FFFFFF
##3437A7	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAA

Deuteranopia (green-blind)

#0041A5

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3437a7;
/* rgb */ color: rgb(52, 55, 167);
/* oklch */ color: oklch(41.2% 0.175 274.4);

Tailwind

colors: {
  custom: {
    50: '#7b6ec2',
    500: '#3437a7',
    950: '#000000',
  },
}

SCSS

$custom: #3437a7;
$custom-light: #7b6ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#3437a7",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 167
  },
  "hsl": {
    "h": 238.435,
    "s": 52.511,
    "l": 42.941
  },
  "oklch": {
    "l": 0.41157,
    "c": 0.17521,
    "h": 274.4
  },
  "luminance": 0.06252
}

Semantic roles & 50–950 ramp

primary

#3437A7

secondary

#C0BE77

accent

#D84CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3437A7

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

Preview Lab → · Contrast checker → · Palette generator →