#37657B#37657B

#37657B is a mid, moderate cyan. Relative luminance 0.116; OKLCH L 48.3% C 0.062 H 230.6°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#37657B
RGB	rgb(55, 101, 123)
HSL	hsl(199, 38%, 35%)
HSV	hsv(199, 55%, 48%)
CMYK	cmyk(55.3%, 17.9%, 0%, 51.8%)
CIE-LAB	lab(40.49, -9.01, -17.14)
CIE-LCH	lch(40.49, 19.36, 242.27°)
OKLab	oklab(48.33% -0.0391 -0.0476)
OKLCH	oklch(48.33% 0.062 230.6)
XYZ	xyz(9.8030, 11.5488, 20.4476)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37657B #7B4D37

analogous

#377B6F #37657B #37437B

triadic

#37657B #7B3765 #657B37

tetradic

#37657B #6F377B #7B4D37 #437B37

square

#37657B #6F377B #7B4D37 #437B37

split-complementary

#37657B #7B3743 #7B6F37

monochromatic

#112026 #244251 #37657B #4A88A5 #6EA4BE

Accessibility & contrast

On white

6.34

#37657B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#37657B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37657B

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37657B	#FFFFFF	#000000	##FFFFFF
##37657B	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A647C

Deuteranopia (green-blind)

#505C7B

Tritanopia (blue-blind)

#086B6C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #37657b;
/* rgb */ color: rgb(55, 101, 123);
/* oklch */ color: oklch(48.3% 0.062 230.6);

Tailwind

colors: {
  custom: {
    50: '#7390a1',
    500: '#37657b',
    950: '#000000',
  },
}

SCSS

$custom: #37657b;
$custom-light: #7390a1;
$custom-dark: #000000;

JSON

{
  "hex": "#37657b",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 123
  },
  "hsl": {
    "h": 199.412,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.48325,
    "c": 0.06164,
    "h": 230.6
  },
  "luminance": 0.1155
}

Semantic roles & 50–950 ramp

primary

#37657B

secondary

#A77C67

accent

#7F5ACE

background

#F7F8F9

surface

#EDF0F2

border

#C8CBCC

text

#080C0F

muted

#7B7D7E

Preview Lab

Preview with #37657B

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

Preview Lab → · Contrast checker → · Palette generator →