#37689D#37689D

#37689D is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.8% C 0.100 H 252.0°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#37689D
RGB	rgb(55, 104, 157)
HSL	hsl(211, 48%, 42%)
HSV	hsv(211, 65%, 62%)
CMYK	cmyk(65%, 33.8%, 0%, 38.4%)
CIE-LAB	lab(42.98, 0.78, -33.68)
CIE-LCH	lch(42.98, 33.69, 271.32°)
OKLab	oklab(50.81% -0.0309 -0.0953)
OKLCH	oklch(50.81% 0.1 252)
XYZ	xyz(12.6094, 13.1459, 33.7647)
Luminance	0.1315 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37689D #9D6C37

analogous

#379B9D #37689D #39379D

triadic

#37689D #9D3768 #689D37

tetradic

#37689D #9D379B #9D6C37 #379D39

square

#37689D #9D379B #9D6C37 #379D39

split-complementary

#37689D #9D3937 #9B9D37

monochromatic

#172C42 #274A70 #37689D #5086C2 #7DA6D1

Accessibility & contrast

On white

5.79

#37689D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#37689D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37689D

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37689D	#FFFFFF	#000000	##FFFFFF
##37689D	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#516B9F

Deuteranopia (green-blind)

#43619C

Tritanopia (blue-blind)

#00747B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #37689d;
/* rgb */ color: rgb(55, 104, 157);
/* oklch */ color: oklch(50.8% 0.100 252.0);

Tailwind

colors: {
  custom: {
    50: '#7892ba',
    500: '#37689d',
    950: '#000000',
  },
}

SCSS

$custom: #37689d;
$custom-light: #7892ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37689d",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 157
  },
  "hsl": {
    "h": 211.176,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.50808,
    "c": 0.10022,
    "h": 252
  },
  "luminance": 0.13147
}

Semantic roles & 50–950 ramp

primary

#37689D

secondary

#BB9975

accent

#9750D8

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0D11

muted

#7C7D80

Preview Lab

Preview with #37689D

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

Preview Lab → · Contrast checker → · Palette generator →