#37597B#37597B

#37597B is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.3% C 0.069 H 249.6°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#37597B
RGB	rgb(55, 89, 123)
HSL	hsl(210, 38%, 35%)
HSV	hsv(210, 55%, 48%)
CMYK	cmyk(55.3%, 27.6%, 0%, 51.8%)
CIE-LAB	lab(36.72, -1.71, -22.96)
CIE-LCH	lch(36.72, 23.03, 265.75°)
OKLab	oklab(45.34% -0.024 -0.0643)
OKLCH	oklch(45.34% 0.069 249.6)
XYZ	xyz(8.7218, 9.3863, 20.0872)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37597B #7B5937

analogous

#377B7B #37597B #37377B

triadic

#37597B #7B3759 #597B37

tetradic

#37597B #7B377B #7B5937 #377B37

square

#37597B #7B377B #7B5937 #377B37

split-complementary

#37597B #7B3737 #7B7B37

monochromatic

#111C26 #243A51 #37597B #4A78A5 #6E96BE

Accessibility & contrast

On white

7.30

#37597B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#37597B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37597B

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37597B	#FFFFFF	#000000	##FFFFFF
##37597B	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5A7D

Deuteranopia (green-blind)

#42537A

Tritanopia (blue-blind)

#0F6165

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #37597b;
/* rgb */ color: rgb(55, 89, 123);
/* oklch */ color: oklch(45.3% 0.069 249.6);

Tailwind

colors: {
  custom: {
    50: '#7387a1',
    500: '#37597b',
    950: '#000000',
  },
}

SCSS

$custom: #37597b;
$custom-light: #7387a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37597b",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 123
  },
  "hsl": {
    "h": 210,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.45341,
    "c": 0.06867,
    "h": 249.6
  },
  "luminance": 0.09387
}

Semantic roles & 50–950 ramp

primary

#37597B

secondary

#A78767

accent

#945ACE

background

#F7F8F9

surface

#EDEFF2

border

#C8CACC

text

#080B0F

muted

#7B7C7E

Preview Lab

Preview with #37597B

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

Preview Lab → · Contrast checker → · Palette generator →