#37647A#37647A

#37647A is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 48.0% C 0.061 H 231.1°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#37647A
RGB	rgb(55, 100, 122)
HSL	hsl(200, 38%, 35%)
HSV	hsv(200, 55%, 48%)
CMYK	cmyk(54.9%, 18%, 0%, 52.2%)
CIE-LAB	lab(40.13, -8.74, -17.07)
CIE-LCH	lch(40.13, 19.18, 242.90°)
OKLab	oklab(48.03% -0.0383 -0.0475)
OKLCH	oklch(48.03% 0.061 231.1)
XYZ	xyz(9.6443, 11.3309, 20.0874)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37647A #7A4D37

analogous

#377A6E #37647A #37437A

triadic

#37647A #7A3764 #647A37

tetradic

#37647A #6E377A #7A4D37 #437A37

square

#37647A #6E377A #7A4D37 #437A37

split-complementary

#37647A #7A3743 #7A6E37

monochromatic

#111F26 #244150 #37647A #4A87A4 #6EA3BE

Accessibility & contrast

On white

6.43

#37647A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#37647A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37647A

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37647A	#FFFFFF	#000000	##FFFFFF
##37647A	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59637B

Deuteranopia (green-blind)

#505B7A

Tritanopia (blue-blind)

#0B6A6B

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #37647a;
/* rgb */ color: rgb(55, 100, 122);
/* oklch */ color: oklch(48.0% 0.061 231.1);

Tailwind

colors: {
  custom: {
    50: '#7390a0',
    500: '#37647a',
    950: '#000000',
  },
}

SCSS

$custom: #37647a;
$custom-light: #7390a0;
$custom-dark: #000000;

JSON

{
  "hex": "#37647a",
  "rgb": {
    "r": 55,
    "g": 100,
    "b": 122
  },
  "hsl": {
    "h": 199.701,
    "s": 37.853,
    "l": 34.706
  },
  "oklch": {
    "l": 0.48027,
    "c": 0.06097,
    "h": 231.1
  },
  "luminance": 0.11332
}

Semantic roles & 50–950 ramp

primary

#37647A

secondary

#A67B66

accent

#805ACE

background

#F7F8F9

surface

#EDF0F2

border

#C8CBCC

text

#080C0E

muted

#7B7D7E

Preview Lab

Preview with #37647A

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

Preview Lab → · Contrast checker → · Palette generator →