#437BBA#437BBA

#437BBA is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.114 H 252.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#437BBA
RGB	rgb(67, 123, 186)
HSL	hsl(212, 47%, 50%)
HSV	hsv(212, 64%, 73%)
CMYK	cmyk(64%, 33.9%, 0%, 27.1%)
CIE-LAB	lab(50.57, 1.54, -38.62)
CIE-LCH	lch(50.57, 38.65, 272.29°)
OKLab	oklab(57.37% -0.0338 -0.1093)
OKLCH	oklch(57.37% 0.114 252.8)
XYZ	xyz(18.2574, 18.9026, 49.1313)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BBA #BA8243

analogous

#43B7BA #437BBA #4743BA

triadic

#437BBA #BA437B #7BBA43

tetradic

#437BBA #BA43B7 #BA8243 #43BA47

square

#437BBA #BA43B7 #BA8243 #43BA47

split-complementary

#437BBA #BA4743 #B7BA43

monochromatic

#233F60 #335D8D #437BBA #6F9ACB #9CBADB

Accessibility & contrast

On white

4.39

#437BBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#437BBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BBA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BBA	#FFFFFF	#000000	##000000
##437BBA	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBD

Deuteranopia (green-blind)

#4F73B9

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #437bba;
/* rgb */ color: rgb(67, 123, 186);
/* oklch */ color: oklch(57.4% 0.114 252.8);

Tailwind

colors: {
  custom: {
    50: '#82a0cf',
    500: '#437bba',
    950: '#000000',
  },
}

SCSS

$custom: #437bba;
$custom-light: #82a0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#437bba",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 186
  },
  "hsl": {
    "h": 211.765,
    "s": 47.036,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57372,
    "c": 0.11444,
    "h": 252.8
  },
  "luminance": 0.18904
}

Semantic roles & 50–950 ramp

primary

#437BBA

secondary

#C8AE91

accent

#9851D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #437BBA

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

Preview Lab → · Contrast checker → · Palette generator →