#437FA5#437FA5

#437FA5 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.2% C 0.086 H 238.5°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#437FA5
RGB	rgb(67, 127, 165)
HSL	hsl(203, 42%, 45%)
HSV	hsv(203, 59%, 65%)
CMYK	cmyk(59.4%, 23%, 0%, 35.3%)
CIE-LAB	lab(50.79, -7.88, -26.14)
CIE-LCH	lch(50.79, 27.30, 253.23°)
OKLab	oklab(57.22% -0.0448 -0.0732)
OKLCH	oklch(57.22% 0.086 238.5)
XYZ	xyz(16.6931, 19.0871, 38.3945)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FA5 #A56943

analogous

#43A59A #437FA5 #434EA5

triadic

#437FA5 #A5437F #7FA543

tetradic

#437FA5 #9A43A5 #A56943 #4EA543

square

#437FA5 #9A43A5 #A56943 #4EA543

split-complementary

#437FA5 #A5434E #A59A43

monochromatic

#203C4E #315D79 #437FA5 #659DC0 #90B9D2

Accessibility & contrast

On white

4.36

#437FA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#437FA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FA5

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FA5	#FFFFFF	#000000	##000000
##437FA5	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7FA7

Deuteranopia (green-blind)

#6075A4

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #437fa5;
/* rgb */ color: rgb(67, 127, 165);
/* oklch */ color: oklch(57.2% 0.086 238.5);

Tailwind

colors: {
  custom: {
    50: '#80a4bf',
    500: '#437fa5',
    950: '#000000',
  },
}

SCSS

$custom: #437fa5;
$custom-light: #80a4bf;
$custom-dark: #000000;

JSON

{
  "hex": "#437fa5",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 165
  },
  "hsl": {
    "h": 203.265,
    "s": 42.241,
    "l": 45.49
  },
  "oklch": {
    "l": 0.57224,
    "c": 0.0858,
    "h": 238.5
  },
  "luminance": 0.19089
}

Semantic roles & 50–950 ramp

primary

#437FA5

secondary

#BD9C86

accent

#8656D2

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #437FA5

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

Preview Lab → · Contrast checker → · Palette generator →