#37699D#37699D

#37699D is a mid, moderate cyan. Relative luminance 0.134; OKLCH L 51.0% C 0.099 H 251.2°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#37699D
RGB	rgb(55, 105, 157)
HSL	hsl(211, 48%, 42%)
HSV	hsv(211, 65%, 62%)
CMYK	cmyk(65%, 33.1%, 0%, 38.4%)
CIE-LAB	lab(43.28, 0.16, -33.20)
CIE-LCH	lch(43.28, 33.20, 270.27°)
OKLab	oklab(51.04% -0.032 -0.0939)
OKLCH	oklch(51.04% 0.099 251.2)
XYZ	xyz(12.7107, 13.3485, 33.7984)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37699D #9D6B37

analogous

#379C9D #37699D #38379D

triadic

#37699D #9D3769 #699D37

tetradic

#37699D #9D379C #9D6B37 #379D38

square

#37699D #9D379C #9D6B37 #379D38

split-complementary

#37699D #9D3837 #9C9D37

monochromatic

#172C42 #274B70 #37699D #5087C2 #7DA6D1

Accessibility & contrast

On white

5.72

#37699D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#37699D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37699D

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37699D	#FFFFFF	#000000	##FFFFFF
##37699D	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536C9F

Deuteranopia (green-blind)

#45629C

Tritanopia (blue-blind)

#00757C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #37699d;
/* rgb */ color: rgb(55, 105, 157);
/* oklch */ color: oklch(51.0% 0.099 251.2);

Tailwind

colors: {
  custom: {
    50: '#7893ba',
    500: '#37699d',
    950: '#000000',
  },
}

SCSS

$custom: #37699d;
$custom-light: #7893ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37699d",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 157
  },
  "hsl": {
    "h": 210.588,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51044,
    "c": 0.09923,
    "h": 251.2
  },
  "luminance": 0.1335
}

Semantic roles & 50–950 ramp

primary

#37699D

secondary

#BB9975

accent

#9550D8

background

#F7F9FB

surface

#EEF1F6

border

#C9CBD0

text

#0A0D11

muted

#7C7E80

Preview Lab

Preview with #37699D

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

Preview Lab → · Contrast checker → · Palette generator →