#37689B#37689B

#37689B is a mid, moderate cyan. Relative luminance 0.131; OKLCH L 50.7% C 0.098 H 251.1°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#37689B
RGB	rgb(55, 104, 155)
HSL	hsl(211, 48%, 41%)
HSV	hsv(211, 65%, 61%)
CMYK	cmyk(64.5%, 32.9%, 0%, 39.2%)
CIE-LAB	lab(42.88, 0.07, -32.65)
CIE-LCH	lch(42.88, 32.65, 270.12°)
OKLab	oklab(50.7% -0.0315 -0.0923)
OKLCH	oklch(50.7% 0.098 251.1)
XYZ	xyz(12.4401, 13.0782, 32.8727)
Luminance	0.1308 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37689B #9B6A37

analogous

#379A9B #37689B #38379B

triadic

#37689B #9B3768 #689B37

tetradic

#37689B #9B379A #9B6A37 #379B38

square

#37689B #9B379A #9B6A37 #379B38

split-complementary

#37689B #9B3837 #9A9B37

monochromatic

#172B41 #274A6E #37689B #4F86C0 #7CA5D0

Accessibility & contrast

On white

5.81

#37689B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#37689B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37689B

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37689B	#FFFFFF	#000000	##FFFFFF
##37689B	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526B9D

Deuteranopia (green-blind)

#44619A

Tritanopia (blue-blind)

#00747A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #37689b;
/* rgb */ color: rgb(55, 104, 155);
/* oklch */ color: oklch(50.7% 0.098 251.1);

Tailwind

colors: {
  custom: {
    50: '#7892b8',
    500: '#37689b',
    950: '#000000',
  },
}

SCSS

$custom: #37689b;
$custom-light: #7892b8;
$custom-dark: #000000;

JSON

{
  "hex": "#37689b",
  "rgb": {
    "r": 55,
    "g": 104,
    "b": 155
  },
  "hsl": {
    "h": 210.6,
    "s": 47.619,
    "l": 41.176
  },
  "oklch": {
    "l": 0.50695,
    "c": 0.09756,
    "h": 251.1
  },
  "luminance": 0.13079
}

Semantic roles & 50–950 ramp

primary

#37689B

secondary

#BA9874

accent

#9551D7

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0D11

muted

#7C7D80

Preview Lab

Preview with #37689B

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

Preview Lab → · Contrast checker → · Palette generator →