#37437A#37437A

#37437A is a dark, moderate blue. Relative luminance 0.062; OKLCH L 40.1% C 0.094 H 272.3°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#37437A
RGB	rgb(55, 67, 122)
HSL	hsl(229, 38%, 35%)
HSV	hsv(229, 55%, 48%)
CMYK	cmyk(54.9%, 45.1%, 0%, 52.2%)
CIE-LAB	lab(29.99, 12.30, -32.94)
CIE-LCH	lch(29.99, 35.16, 290.47°)
OKLab	oklab(40.1% 0.0037 -0.0935)
OKLCH	oklch(40.1% 0.094 272.3)
XYZ	xyz(7.0944, 6.2312, 19.2375)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37437A #7A6E37

analogous

#37657A #37437A #4D377A

triadic

#37437A #7A3743 #437A37

tetradic

#37437A #7A3765 #7A6E37 #377A4D

square

#37437A #7A3765 #7A6E37 #377A4D

split-complementary

#37437A #7A4D37 #657A37

monochromatic

#111526 #242C50 #37437A #4A5AA4 #6E7CBE

Accessibility & contrast

On white

9.35

#37437A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#37437A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37437A

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37437A	#FFFFFF	#000000	##FFFFFF
##37437A	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4A7C

Deuteranopia (green-blind)

#244479

Tritanopia (blue-blind)

#184F58

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #37437a;
/* rgb */ color: rgb(55, 67, 122);
/* oklch */ color: oklch(40.1% 0.094 272.3);

Tailwind

colors: {
  custom: {
    50: '#7376a1',
    500: '#37437a',
    950: '#000000',
  },
}

SCSS

$custom: #37437a;
$custom-light: #7376a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37437a",
  "rgb": {
    "r": 55,
    "g": 67,
    "b": 122
  },
  "hsl": {
    "h": 229.254,
    "s": 37.853,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40099,
    "c": 0.09361,
    "h": 272.3
  },
  "luminance": 0.06232
}

Semantic roles & 50–950 ramp

primary

#37437A

secondary

#A69B66

accent

#B95ACE

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#08080F

muted

#7B7B7E

Preview Lab

Preview with #37437A

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

Preview Lab → · Contrast checker → · Palette generator →