#437FB5#437FB5

#437FB5 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.0% C 0.104 H 247.8°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#437FB5
RGB	rgb(67, 127, 181)
HSL	hsl(208, 46%, 49%)
HSV	hsv(208, 63%, 71%)
CMYK	cmyk(63%, 29.8%, 0%, 29%)
CIE-LAB	lab(51.50, -2.55, -34.28)
CIE-LCH	lch(51.50, 34.38, 265.74°)
OKLab	oklab(58.02% -0.0395 -0.0967)
OKLCH	oklch(58.02% 0.104 247.8)
XYZ	xyz(18.2415, 19.7065, 46.5495)
Luminance	0.1971 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FB5 #B57943

analogous

#43B5B2 #437FB5 #4346B5

triadic

#437FB5 #B5437F #7FB543

tetradic

#437FB5 #B243B5 #B57943 #46B543

square

#437FB5 #B243B5 #B57943 #46B543

split-complementary

#437FB5 #B54346 #B5B243

monochromatic

#22405C #326088 #437FB5 #6C9DC9 #99BBD9

Accessibility & contrast

On white

4.25

#437FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#437FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FB5

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FB5	#FFFFFF	#000000	##000000
##437FB5	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6881B7

Deuteranopia (green-blind)

#5876B4

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #437fb5;
/* rgb */ color: rgb(67, 127, 181);
/* oklch */ color: oklch(58.0% 0.104 247.8);

Tailwind

colors: {
  custom: {
    50: '#82a3cb',
    500: '#437fb5',
    950: '#000000',
  },
}

SCSS

$custom: #437fb5;
$custom-light: #82a3cb;
$custom-dark: #000000;

JSON

{
  "hex": "#437fb5",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 181
  },
  "hsl": {
    "h": 208.421,
    "s": 45.968,
    "l": 48.627
  },
  "oklch": {
    "l": 0.58024,
    "c": 0.10444,
    "h": 247.8
  },
  "luminance": 0.19708
}

Semantic roles & 50–950 ramp

primary

#437FB5

secondary

#C5A88F

accent

#9052D6

background

#F8FAFC

surface

#F0F3F8

border

#CBCDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #437FB5

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

Preview Lab → · Contrast checker → · Palette generator →