#437D8A#437D8A

#437D8A is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.064 H 214.0°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#437D8A
RGB	rgb(67, 125, 138)
HSL	hsl(191, 35%, 40%)
HSV	hsv(191, 51%, 54%)
CMYK	cmyk(51.4%, 9.4%, 0%, 45.9%)
CIE-LAB	lab(49.12, -15.18, -12.91)
CIE-LCH	lch(49.12, 19.93, 220.38°)
OKLab	oklab(55.55% -0.0529 -0.0356)
OKLCH	oklch(55.55% 0.064 214)
XYZ	xyz(14.2340, 17.6943, 26.7051)
Luminance	0.1770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437D8A #8A5043

analogous

#438A73 #437D8A #43598A

triadic

#437D8A #8A437D #7D8A43

tetradic

#437D8A #73438A #8A5043 #598A43

square

#437D8A #73438A #8A5043 #598A43

split-complementary

#437D8A #8A4359 #8A7343

monochromatic

#1B3238 #2F5861 #437D8A #5BA0AF #84B8C3

Accessibility & contrast

On white

4.63

#437D8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#437D8A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #437D8A

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437D8A	#FFFFFF	#000000	##FFFFFF
##437D8A	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#73798B

Deuteranopia (green-blind)

#68718A

Tritanopia (blue-blind)

#188281

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #437d8a;
/* rgb */ color: rgb(67, 125, 138);
/* oklch */ color: oklch(55.5% 0.064 214.0);

Tailwind

colors: {
  custom: {
    50: '#7da2ac',
    500: '#437d8a',
    950: '#000000',
  },
}

SCSS

$custom: #437d8a;
$custom-light: #7da2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#437d8a",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 138
  },
  "hsl": {
    "h": 190.986,
    "s": 34.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55548,
    "c": 0.06382,
    "h": 214
  },
  "luminance": 0.17696
}

Semantic roles & 50–950 ramp

primary

#437D8A

secondary

#AE847B

accent

#715DCB

background

#F7FAFA

surface

#EEF3F4

border

#C9CDCE

text

#0A0F10

muted

#7C7F7F

Preview Lab

Preview with #437D8A

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

Preview Lab → · Contrast checker → · Palette generator →