#37447C#37447C

#37447C is a dark, moderate blue. Relative luminance 0.064; OKLCH L 40.5% C 0.095 H 271.7°. Best body text is #FFFFFF at 9.21:1 contrast (WCAG AA passes).

Color values

HEX	#37447C
RGB	rgb(55, 68, 124)
HSL	hsl(229, 39%, 35%)
HSV	hsv(229, 56%, 49%)
CMYK	cmyk(55.6%, 45.2%, 0%, 51.4%)
CIE-LAB	lab(30.40, 12.32, -33.53)
CIE-LCH	lch(30.40, 35.72, 290.18°)
OKLab	oklab(40.46% 0.0028 -0.0953)
OKLCH	oklch(40.46% 0.095 271.7)
XYZ	xyz(7.2796, 6.4012, 19.9168)
Luminance	0.0640 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37447C #7C6F37

analogous

#37667C #37447C #4D377C

triadic

#37447C #7C3744 #447C37

tetradic

#37447C #7C3766 #7C6F37 #377C4D

square

#37447C #7C3766 #7C6F37 #377C4D

split-complementary

#37447C #7C4D37 #667C37

monochromatic

#111627 #242D52 #37447C #4A5BA6 #6E7EBF

Accessibility & contrast

On white

9.21

#37447C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#37447C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37447C

9.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37447C	#FFFFFF	#000000	##FFFFFF
##37447C	1.00	9.21	2.28	9.21
#FFFFFF	9.21	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4B7E

Deuteranopia (green-blind)

#24457B

Tritanopia (blue-blind)

#15505A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #37447c;
/* rgb */ color: rgb(55, 68, 124);
/* oklch */ color: oklch(40.5% 0.095 271.7);

Tailwind

colors: {
  custom: {
    50: '#7377a2',
    500: '#37447c',
    950: '#000000',
  },
}

SCSS

$custom: #37447c;
$custom-light: #7377a2;
$custom-dark: #000000;

JSON

{
  "hex": "#37447c",
  "rgb": {
    "r": 55,
    "g": 68,
    "b": 124
  },
  "hsl": {
    "h": 228.696,
    "s": 38.547,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40455,
    "c": 0.0953,
    "h": 271.7
  },
  "luminance": 0.06402
}

Semantic roles & 50–950 ramp

primary

#37447C

secondary

#A89C67

accent

#B859CE

background

#F7F7FA

surface

#EDEDF3

border

#C8C8CD

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #37447C

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

Preview Lab → · Contrast checker → · Palette generator →