#37698B#37698B

#37698B is a mid, moderate cyan. Relative luminance 0.128; OKLCH L 50.1% C 0.077 H 240.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#37698B
RGB	rgb(55, 105, 139)
HSL	hsl(204, 43%, 38%)
HSV	hsv(204, 60%, 55%)
CMYK	cmyk(60.4%, 24.5%, 0%, 45.5%)
CIE-LAB	lab(42.43, -6.09, -23.81)
CIE-LCH	lch(42.43, 24.57, 255.65°)
OKLab	oklab(50.09% -0.0379 -0.0667)
OKLCH	oklch(50.09% 0.077 240.4)
XYZ	xyz(11.2856, 12.7784, 26.2928)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37698B #8B5937

analogous

#378B83 #37698B #373F8B

triadic

#37698B #8B3769 #698B37

tetradic

#37698B #83378B #8B5937 #3F8B37

square

#37698B #83378B #8B5937 #3F8B37

split-complementary

#37698B #8B373F #8B8337

monochromatic

#142733 #26485F #37698B #488AB7 #74A6C8

Accessibility & contrast

On white

5.91

#37698B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#37698B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37698B

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37698B	#FFFFFF	#000000	##FFFFFF
##37698B	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A698D

Deuteranopia (green-blind)

#4E608A

Tritanopia (blue-blind)

#007175

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #37698b;
/* rgb */ color: rgb(55, 105, 139);
/* oklch */ color: oklch(50.1% 0.077 240.4);

Tailwind

colors: {
  custom: {
    50: '#7593ad',
    500: '#37698b',
    950: '#000000',
  },
}

SCSS

$custom: #37698b;
$custom-light: #7593ad;
$custom-dark: #000000;

JSON

{
  "hex": "#37698b",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 139
  },
  "hsl": {
    "h": 204.286,
    "s": 43.299,
    "l": 38.039
  },
  "oklch": {
    "l": 0.50088,
    "c": 0.07672,
    "h": 240.4
  },
  "luminance": 0.12779
}

Semantic roles & 50–950 ramp

primary

#37698B

secondary

#B1886D

accent

#8855D3

background

#F7F9FA

surface

#EDF1F4

border

#C8CBCE

text

#090D10

muted

#7B7E7F

Preview Lab

Preview with #37698B

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

Preview Lab → · Contrast checker → · Palette generator →