#37659B#37659B

#37659B is a mid, moderate cyan. Relative luminance 0.125; OKLCH L 50.0% C 0.101 H 253.7°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#37659B
RGB	rgb(55, 101, 155)
HSL	hsl(212, 48%, 41%)
HSV	hsv(212, 65%, 61%)
CMYK	cmyk(64.5%, 34.8%, 0%, 39.2%)
CIE-LAB	lab(41.98, 1.93, -34.08)
CIE-LCH	lch(41.98, 34.13, 273.24°)
OKLab	oklab(49.99% -0.0282 -0.0965)
OKLCH	oklch(49.99% 0.101 253.7)
XYZ	xyz(12.1435, 12.4850, 32.7739)
Luminance	0.1249 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37659B #9B6D37

analogous

#37979B #37659B #3B379B

triadic

#37659B #9B3765 #659B37

tetradic

#37659B #9B3797 #9B6D37 #379B3B

square

#37659B #9B3797 #9B6D37 #379B3B

split-complementary

#37659B #9B3B37 #979B37

monochromatic

#172A41 #27486E #37659B #4F83C0 #7CA3D0

Accessibility & contrast

On white

6.00

#37659B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#37659B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37659B

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37659B	#FFFFFF	#000000	##FFFFFF
##37659B	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E689D

Deuteranopia (green-blind)

#405F9A

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #37659b;
/* rgb */ color: rgb(55, 101, 155);
/* oklch */ color: oklch(50.0% 0.101 253.7);

Tailwind

colors: {
  custom: {
    50: '#7890b9',
    500: '#37659b',
    950: '#000000',
  },
}

SCSS

$custom: #37659b;
$custom-light: #7890b9;
$custom-dark: #000000;

JSON

{
  "hex": "#37659b",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 155
  },
  "hsl": {
    "h": 212.4,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.49987,
    "c": 0.10055,
    "h": 253.7
  },
  "luminance": 0.12486
}

Semantic roles & 50–950 ramp

primary

#37659B

secondary

#BA9A74

accent

#9951D7

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #37659B

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

Preview Lab → · Contrast checker → · Palette generator →