#437B8A#437B8A

#437B8A is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.1% C 0.063 H 217.2°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#437B8A
RGB	rgb(67, 123, 138)
HSL	hsl(193, 35%, 40%)
HSV	hsv(193, 51%, 54%)
CMYK	cmyk(51.4%, 10.9%, 0%, 45.9%)
CIE-LAB	lab(48.50, -14.07, -13.85)
CIE-LCH	lch(48.50, 19.75, 224.54°)
OKLab	oklab(55.05% -0.0505 -0.0383)
OKLCH	oklch(55.05% 0.063 217.2)
XYZ	xyz(13.9834, 17.1930, 26.6215)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437B8A #8A5243

analogous

#438A75 #437B8A #43578A

triadic

#437B8A #8A437B #7B8A43

tetradic

#437B8A #75438A #8A5243 #578A43

square

#437B8A #75438A #8A5243 #578A43

split-complementary

#437B8A #8A4357 #8A7543

monochromatic

#1B3238 #2F5661 #437B8A #5B9DAF #84B6C3

Accessibility & contrast

On white

4.73

#437B8A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#437B8A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #437B8A

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437B8A	#FFFFFF	#000000	##FFFFFF
##437B8A	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71788B

Deuteranopia (green-blind)

#66708A

Tritanopia (blue-blind)

#198080

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #437b8a;
/* rgb */ color: rgb(67, 123, 138);
/* oklch */ color: oklch(55.1% 0.063 217.2);

Tailwind

colors: {
  custom: {
    50: '#7ca1ac',
    500: '#437b8a',
    950: '#000000',
  },
}

SCSS

$custom: #437b8a;
$custom-light: #7ca1ac;
$custom-dark: #000000;

JSON

{
  "hex": "#437b8a",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 138
  },
  "hsl": {
    "h": 192.676,
    "s": 34.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.55052,
    "c": 0.06335,
    "h": 217.2
  },
  "luminance": 0.17194
}

Semantic roles & 50–950 ramp

primary

#437B8A

secondary

#AE857B

accent

#745DCB

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#0A0F10

muted

#7C7E7F

Preview Lab

Preview with #437B8A

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

Preview Lab → · Contrast checker → · Palette generator →