#437FA4#437FA4

#437FA4 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.2% C 0.085 H 237.8°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#437FA4
RGB	rgb(67, 127, 164)
HSL	hsl(203, 42%, 45%)
HSV	hsv(203, 59%, 64%)
CMYK	cmyk(59.1%, 22.6%, 0%, 35.7%)
CIE-LAB	lab(50.75, -8.20, -25.63)
CIE-LCH	lch(50.75, 26.91, 252.25°)
OKLab	oklab(57.18% -0.0451 -0.0717)
OKLCH	oklch(57.18% 0.085 237.8)
XYZ	xyz(16.6024, 19.0508, 37.9170)
Luminance	0.1905 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FA4 #A46843

analogous

#43A498 #437FA4 #434EA4

triadic

#437FA4 #A4437F #7FA443

tetradic

#437FA4 #9843A4 #A46843 #4EA443

square

#437FA4 #9843A4 #A46843 #4EA443

split-complementary

#437FA4 #A4434E #A49843

monochromatic

#1F3C4D #315D79 #437FA4 #649DC0 #90B8D2

Accessibility & contrast

On white

4.37

#437FA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#437FA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FA4

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FA4	#FFFFFF	#000000	##000000
##437FA4	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7EA6

Deuteranopia (green-blind)

#6174A3

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #437fa4;
/* rgb */ color: rgb(67, 127, 164);
/* oklch */ color: oklch(57.2% 0.085 237.8);

Tailwind

colors: {
  custom: {
    50: '#7fa4bf',
    500: '#437fa4',
    950: '#000000',
  },
}

SCSS

$custom: #437fa4;
$custom-light: #7fa4bf;
$custom-dark: #000000;

JSON

{
  "hex": "#437fa4",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 164
  },
  "hsl": {
    "h": 202.887,
    "s": 41.991,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57176,
    "c": 0.08473,
    "h": 237.8
  },
  "luminance": 0.19052
}

Semantic roles & 50–950 ramp

primary

#437FA4

secondary

#BD9B86

accent

#8556D2

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #437FA4

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

Preview Lab → · Contrast checker → · Palette generator →