#37699E#37699E

#37699E is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 51.1% C 0.101 H 251.6°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#37699E
RGB	rgb(55, 105, 158)
HSL	hsl(211, 48%, 42%)
HSV	hsv(211, 65%, 62%)
CMYK	cmyk(65.2%, 33.5%, 0%, 38%)
CIE-LAB	lab(43.33, 0.51, -33.72)
CIE-LCH	lch(43.33, 33.72, 270.87°)
OKLab	oklab(51.1% -0.0317 -0.0954)
OKLCH	oklch(51.1% 0.101 251.6)
XYZ	xyz(12.7964, 13.3827, 34.2499)
Luminance	0.1338 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37699E #9E6C37

analogous

#379D9E #37699E #39379E

triadic

#37699E #9E3769 #699E37

tetradic

#37699E #9E379D #9E6C37 #379E39

square

#37699E #9E379D #9E6C37 #379E39

split-complementary

#37699E #9E3937 #9D9E37

monochromatic

#172D43 #274B71 #37699E #5087C2 #7DA6D2

Accessibility & contrast

On white

5.71

#37699E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#37699E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37699E

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37699E	#FFFFFF	#000000	##FFFFFF
##37699E	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526CA0

Deuteranopia (green-blind)

#44629D

Tritanopia (blue-blind)

#00757C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #37699e;
/* rgb */ color: rgb(55, 105, 158);
/* oklch */ color: oklch(51.1% 0.101 251.6);

Tailwind

colors: {
  custom: {
    50: '#7893bb',
    500: '#37699e',
    950: '#000000',
  },
}

SCSS

$custom: #37699e;
$custom-light: #7893bb;
$custom-dark: #000000;

JSON

{
  "hex": "#37699e",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 158
  },
  "hsl": {
    "h": 210.874,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.51101,
    "c": 0.10056,
    "h": 251.6
  },
  "luminance": 0.13384
}

Semantic roles & 50–950 ramp

primary

#37699E

secondary

#BB9976

accent

#9650D8

background

#F7F9FB

surface

#EEF1F6

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #37699E

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

Preview Lab → · Contrast checker → · Palette generator →