#437ABB#437ABB

#437ABB is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.2% C 0.117 H 253.9°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#437ABB
RGB	rgb(67, 122, 187)
HSL	hsl(213, 47%, 50%)
HSV	hsv(213, 64%, 73%)
CMYK	cmyk(64.2%, 34.8%, 0%, 26.7%)
CIE-LAB	lab(50.33, 2.49, -39.57)
CIE-LCH	lch(50.33, 39.65, 273.60°)
OKLab	oklab(57.2% -0.0324 -0.1121)
OKLCH	oklch(57.2% 0.117 253.9)
XYZ	xyz(18.2407, 18.6985, 49.6520)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437ABB #BB8443

analogous

#43B6BB #437ABB #4843BB

triadic

#437ABB #BB437A #7ABB43

tetradic

#437ABB #BB43B6 #BB8443 #43BB48

square

#437ABB #BB43B6 #BB8443 #43BB48

split-complementary

#437ABB #BB4843 #B6BB43

monochromatic

#233F61 #335D8E #437ABB #709ACC #9DBADC

Accessibility & contrast

On white

4.43

#437ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#437ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437ABB

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437ABB	#FFFFFF	#000000	##000000
##437ABB	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#4D73BA

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #437abb;
/* rgb */ color: rgb(67, 122, 187);
/* oklch */ color: oklch(57.2% 0.117 253.9);

Tailwind

colors: {
  custom: {
    50: '#83a0d0',
    500: '#437abb',
    950: '#000000',
  },
}

SCSS

$custom: #437abb;
$custom-light: #83a0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#437abb",
  "rgb": {
    "r": 67,
    "g": 122,
    "b": 187
  },
  "hsl": {
    "h": 212.5,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.57201,
    "c": 0.11674,
    "h": 253.9
  },
  "luminance": 0.187
}

Semantic roles & 50–950 ramp

primary

#437ABB

secondary

#C8AF92

accent

#9951D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #437ABB

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

Preview Lab → · Contrast checker → · Palette generator →