#37577C#37577C

#37577C is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.9% C 0.072 H 252.9°. Best body text is #FFFFFF at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#37577C
RGB	rgb(55, 87, 124)
HSL	hsl(212, 39%, 35%)
HSV	hsv(212, 56%, 49%)
CMYK	cmyk(55.6%, 29.8%, 0%, 51.4%)
CIE-LAB	lab(36.14, -0.11, -24.47)
CIE-LCH	lch(36.14, 24.47, 269.74°)
OKLab	oklab(44.91% -0.0211 -0.0687)
OKLCH	oklch(44.91% 0.072 252.9)
XYZ	xyz(8.6206, 9.0832, 20.3638)
Luminance	0.0908 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37577C #7C5C37

analogous

#37797C #37577C #3A377C

triadic

#37577C #7C3757 #577C37

tetradic

#37577C #7C3779 #7C5C37 #377C3A

square

#37577C #7C3779 #7C5C37 #377C3A

split-complementary

#37577C #7C3A37 #797C37

monochromatic

#111C27 #243952 #37577C #4A75A6 #6E94BF

Accessibility & contrast

On white

7.46

#37577C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#37577C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37577C

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37577C	#FFFFFF	#000000	##FFFFFF
##37577C	1.00	7.46	2.82	7.46
#FFFFFF	7.46	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48597E

Deuteranopia (green-blind)

#3F527B

Tritanopia (blue-blind)

#0F5F64

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #37577c;
/* rgb */ color: rgb(55, 87, 124);
/* oklch */ color: oklch(44.9% 0.072 252.9);

Tailwind

colors: {
  custom: {
    50: '#7386a2',
    500: '#37577c',
    950: '#000000',
  },
}

SCSS

$custom: #37577c;
$custom-light: #7386a2;
$custom-dark: #000000;

JSON

{
  "hex": "#37577c",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 124
  },
  "hsl": {
    "h": 212.174,
    "s": 38.547,
    "l": 35.098
  },
  "oklch": {
    "l": 0.44906,
    "c": 0.07189,
    "h": 252.9
  },
  "luminance": 0.09084
}

Semantic roles & 50–950 ramp

primary

#37577C

secondary

#A88A67

accent

#9859CE

background

#F7F8F9

surface

#EDEFF2

border

#C8CACC

text

#080B0F

muted

#7B7C7E

Preview Lab

Preview with #37577C

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

Preview Lab → · Contrast checker → · Palette generator →