#437ABF#437ABF

#437ABF is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.122 H 255.1°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#437ABF
RGB	rgb(67, 122, 191)
HSL	hsl(213, 49%, 51%)
HSV	hsv(213, 65%, 75%)
CMYK	cmyk(64.9%, 36.1%, 0%, 25.1%)
CIE-LAB	lab(50.54, 3.88, -41.55)
CIE-LCH	lch(50.54, 41.73, 275.33°)
OKLab	oklab(57.43% -0.0314 -0.1179)
OKLCH	oklch(57.43% 0.122 255.1)
XYZ	xyz(18.6748, 18.8721, 51.9386)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437ABF #BF8843

analogous

#43B8BF #437ABF #4A43BF

triadic

#437ABF #BF437A #7ABF43

tetradic

#437ABF #BF43B8 #BF8843 #43BF4A

square

#437ABF #BF43B8 #BF8843 #43BF4A

split-complementary

#437ABF #BF4A43 #B8BF43

monochromatic

#224065 #325D93 #437ABF #719ACF #9EBBDE

Accessibility & contrast

On white

4.40

#437ABF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#437ABF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437ABF

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437ABF	#FFFFFF	#000000	##000000
##437ABF	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7FC2

Deuteranopia (green-blind)

#4A73BE

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #437abf;
/* rgb */ color: rgb(67, 122, 191);
/* oklch */ color: oklch(57.4% 0.122 255.1);

Tailwind

colors: {
  custom: {
    50: '#83a0d2',
    500: '#437abf',
    950: '#000000',
  },
}

SCSS

$custom: #437abf;
$custom-light: #83a0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#437abf",
  "rgb": {
    "r": 67,
    "g": 122,
    "b": 191
  },
  "hsl": {
    "h": 213.387,
    "s": 49.206,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57427,
    "c": 0.12202,
    "h": 255.1
  },
  "luminance": 0.18874
}

Semantic roles & 50–950 ramp

primary

#437ABF

secondary

#CAB293

accent

#9C4FD9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #437ABF

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

Preview Lab → · Contrast checker → · Palette generator →