#437BBC#437BBC

#437BBC is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.5% C 0.117 H 253.5°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#437BBC
RGB	rgb(67, 123, 188)
HSL	hsl(212, 47%, 50%)
HSV	hsv(212, 64%, 74%)
CMYK	cmyk(64.4%, 34.6%, 0%, 26.3%)
CIE-LAB	lab(50.67, 2.23, -39.61)
CIE-LCH	lch(50.67, 39.67, 273.22°)
OKLab	oklab(57.48% -0.0332 -0.1122)
OKLCH	oklch(57.48% 0.117 253.5)
XYZ	xyz(18.4715, 18.9883, 50.2589)
Luminance	0.1899 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437BBC #BC8443

analogous

#43B8BC #437BBC #4743BC

triadic

#437BBC #BC437B #7BBC43

tetradic

#437BBC #BC43B8 #BC8443 #43BC47

square

#437BBC #BC43B8 #BC8443 #43BC47

split-complementary

#437BBC #BC4743 #B8BC43

monochromatic

#234062 #335D8F #437BBC #709BCC #9DBADC

Accessibility & contrast

On white

4.38

#437BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#437BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437BBC

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437BBC	#FFFFFF	#000000	##000000
##437BBC	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#4E73BB

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #437bbc;
/* rgb */ color: rgb(67, 123, 188);
/* oklch */ color: oklch(57.5% 0.117 253.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#437bbc",
  "rgb": {
    "r": 67,
    "g": 123,
    "b": 188
  },
  "hsl": {
    "h": 212.231,
    "s": 47.451,
    "l": 50
  },
  "oklch": {
    "l": 0.57484,
    "c": 0.11706,
    "h": 253.5
  },
  "luminance": 0.1899
}

Semantic roles & 50–950 ramp

primary

#437BBC

secondary

#C9AF92

accent

#9951D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #437BBC

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

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