#37537E#37537E

#37537E is a dark, moderate blue. Relative luminance 0.085; OKLCH L 44.1% C 0.079 H 258.7°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#37537E
RGB	rgb(55, 83, 126)
HSL	hsl(216, 39%, 35%)
HSV	hsv(216, 56%, 49%)
CMYK	cmyk(56.3%, 34.1%, 0%, 50.6%)
CIE-LAB	lab(35.01, 3.13, -27.48)
CIE-LCH	lch(35.01, 27.65, 276.50°)
OKLab	oklab(44.05% -0.0155 -0.0775)
OKLCH	oklch(44.05% 0.079 258.7)
XYZ	xyz(8.4334, 8.5044, 20.9317)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37537E #7E6237

analogous

#37767E #37537E #3E377E

triadic

#37537E #7E3753 #537E37

tetradic

#37537E #7E3776 #7E6237 #377E3E

square

#37537E #7E3776 #7E6237 #377E3E

split-complementary

#37537E #7E3E37 #767E37

monochromatic

#121B29 #243753 #37537E #4A6FA9 #6F8FC0

Accessibility & contrast

On white

7.77

#37537E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#37537E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37537E

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37537E	#FFFFFF	#000000	##FFFFFF
##37537E	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425680

Deuteranopia (green-blind)

#394F7D

Tritanopia (blue-blind)

#0D5D62

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #37537e;
/* rgb */ color: rgb(55, 83, 126);
/* oklch */ color: oklch(44.1% 0.079 258.7);

Tailwind

colors: {
  custom: {
    50: '#7383a3',
    500: '#37537e',
    950: '#000000',
  },
}

SCSS

$custom: #37537e;
$custom-light: #7383a3;
$custom-dark: #000000;

JSON

{
  "hex": "#37537e",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 126
  },
  "hsl": {
    "h": 216.338,
    "s": 39.227,
    "l": 35.49
  },
  "oklch": {
    "l": 0.44054,
    "c": 0.07899,
    "h": 258.7
  },
  "luminance": 0.08505
}

Semantic roles & 50–950 ramp

primary

#37537E

secondary

#A98F68

accent

#A059CF

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #37537E

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

Preview Lab → · Contrast checker → · Palette generator →