#437FBF#437FBF

#437FBF is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.6% C 0.117 H 251.8°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#437FBF
RGB	rgb(67, 127, 191)
HSL	hsl(211, 49%, 51%)
HSV	hsv(211, 65%, 75%)
CMYK	cmyk(64.9%, 33.5%, 0%, 25.1%)
CIE-LAB	lab(51.99, 0.87, -39.26)
CIE-LCH	lch(51.99, 39.27, 271.26°)
OKLab	oklab(58.56% -0.0366 -0.1112)
OKLCH	oklch(58.56% 0.117 251.8)
XYZ	xyz(19.3046, 20.1317, 52.1486)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437FBF #BF8343

analogous

#43BDBF #437FBF #4543BF

triadic

#437FBF #BF437F #7FBF43

tetradic

#437FBF #BF43BD #BF8343 #43BF45

square

#437FBF #BF43BD #BF8343 #43BF45

split-complementary

#437FBF #BF4543 #BDBF43

monochromatic

#224365 #326193 #437FBF #719ECF #9EBDDE

Accessibility & contrast

On white

4.18

#437FBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#437FBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437FBF

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437FBF	#FFFFFF	#000000	##000000
##437FBF	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6382C2

Deuteranopia (green-blind)

#5277BE

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #437fbf;
/* rgb */ color: rgb(67, 127, 191);
/* oklch */ color: oklch(58.6% 0.117 251.8);

Tailwind

colors: {
  custom: {
    50: '#83a3d2',
    500: '#437fbf',
    950: '#000000',
  },
}

SCSS

$custom: #437fbf;
$custom-light: #83a3d2;
$custom-dark: #000000;

JSON

{
  "hex": "#437fbf",
  "rgb": {
    "r": 67,
    "g": 127,
    "b": 191
  },
  "hsl": {
    "h": 210.968,
    "s": 49.206,
    "l": 50.588
  },
  "oklch": {
    "l": 0.5856,
    "c": 0.11704,
    "h": 251.8
  },
  "luminance": 0.20134
}

Semantic roles & 50–950 ramp

primary

#437FBF

secondary

#CAB093

accent

#964FD9

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #437FBF

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

Preview Lab → · Contrast checker → · Palette generator →