#37447A#37447A

#37447A is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.3% C 0.092 H 271.5°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#37447A
RGB	rgb(55, 68, 122)
HSL	hsl(228, 38%, 35%)
HSV	hsv(228, 55%, 48%)
CMYK	cmyk(54.9%, 44.3%, 0%, 52.2%)
CIE-LAB	lab(30.28, 11.62, -32.47)
CIE-LCH	lch(30.28, 34.49, 289.70°)
OKLab	oklab(40.32% 0.0025 -0.0922)
OKLCH	oklch(40.32% 0.092 271.5)
XYZ	xyz(7.1544, 6.3511, 19.2575)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37447A #7A6D37

analogous

#37667A #37447A #4C377A

triadic

#37447A #7A3744 #447A37

tetradic

#37447A #7A3766 #7A6D37 #377A4C

square

#37447A #7A3766 #7A6D37 #377A4C

split-complementary

#37447A #7A4C37 #667A37

monochromatic

#111526 #242C50 #37447A #4A5CA4 #6E7DBE

Accessibility & contrast

On white

9.25

#37447A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#37447A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37447A

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37447A	#FFFFFF	#000000	##FFFFFF
##37447A	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4A7C

Deuteranopia (green-blind)

#264579

Tritanopia (blue-blind)

#175059

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #37447a;
/* rgb */ color: rgb(55, 68, 122);
/* oklch */ color: oklch(40.3% 0.092 271.5);

Tailwind

colors: {
  custom: {
    50: '#7377a1',
    500: '#37447a',
    950: '#000000',
  },
}

SCSS

$custom: #37447a;
$custom-light: #7377a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37447a",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 122
  },
  "hsl": {
    "h": 228.358,
    "s": 37.853,
    "l": 34.706
  },
  "oklch": {
    "l": 0.40323,
    "c": 0.09219,
    "h": 271.5
  },
  "luminance": 0.06352
}

Semantic roles & 50–950 ramp

primary

#37447A

secondary

#A69A66

accent

#B75ACE

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#08080F

muted

#7B7B7E

Preview Lab

Preview with #37447A

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

Preview Lab → · Contrast checker → · Palette generator →