#437DA4#437DA4

#437DA4 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.086 H 240.1°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#437DA4
RGB	rgb(67, 125, 164)
HSL	hsl(204, 42%, 45%)
HSV	hsv(204, 59%, 64%)
CMYK	cmyk(59.1%, 23.8%, 0%, 35.7%)
CIE-LAB	lab(50.14, -7.05, -26.56)
CIE-LCH	lch(50.14, 27.48, 255.14°)
OKLab	oklab(56.7% -0.0429 -0.0744)
OKLCH	oklch(56.7% 0.086 240.1)
XYZ	xyz(16.3467, 18.5394, 37.8318)
Luminance	0.1854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DA4 #A46A43

analogous

#43A49A #437DA4 #434CA4

triadic

#437DA4 #A4437D #7DA443

tetradic

#437DA4 #9A43A4 #A46A43 #4CA443

square

#437DA4 #9A43A4 #A46A43 #4CA443

split-complementary

#437DA4 #A4434C #A49A43

monochromatic

#1F3B4D #315C79 #437DA4 #649BC0 #90B7D2

Accessibility & contrast

On white

4.46

#437DA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#437DA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DA4

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DA4	#FFFFFF	#000000	##000000
##437DA4	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA6

Deuteranopia (green-blind)

#5E73A3

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #437da4;
/* rgb */ color: rgb(67, 125, 164);
/* oklch */ color: oklch(56.7% 0.086 240.1);

Tailwind

colors: {
  custom: {
    50: '#7fa2bf',
    500: '#437da4',
    950: '#000000',
  },
}

SCSS

$custom: #437da4;
$custom-light: #7fa2bf;
$custom-dark: #000000;

JSON

{
  "hex": "#437da4",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 164
  },
  "hsl": {
    "h": 204.124,
    "s": 41.991,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56698,
    "c": 0.08585,
    "h": 240.1
  },
  "luminance": 0.18541
}

Semantic roles & 50–950 ramp

primary

#437DA4

secondary

#BD9C86

accent

#8856D2

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0F12

muted

#7C7E81

Preview Lab

Preview with #437DA4

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

Preview Lab → · Contrast checker → · Palette generator →