#437DA5#437DA5

#437DA5 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.7% C 0.087 H 240.7°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#437DA5
RGB	rgb(67, 125, 165)
HSL	hsl(204, 42%, 45%)
HSV	hsv(204, 59%, 65%)
CMYK	cmyk(59.4%, 24.2%, 0%, 35.3%)
CIE-LAB	lab(50.19, -6.72, -27.08)
CIE-LCH	lch(50.19, 27.90, 256.07°)
OKLab	oklab(56.75% -0.0425 -0.0759)
OKLCH	oklch(56.75% 0.087 240.7)
XYZ	xyz(16.4374, 18.5756, 38.3092)
Luminance	0.1858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437DA5 #A56B43

analogous

#43A59C #437DA5 #434CA5

triadic

#437DA5 #A5437D #7DA543

tetradic

#437DA5 #9C43A5 #A56B43 #4CA543

square

#437DA5 #9C43A5 #A56B43 #4CA543

split-complementary

#437DA5 #A5434C #A59C43

monochromatic

#203B4E #315C79 #437DA5 #659BC0 #90B7D2

Accessibility & contrast

On white

4.45

#437DA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#437DA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437DA5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437DA5	#FFFFFF	#000000	##000000
##437DA5	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA7

Deuteranopia (green-blind)

#5E73A4

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #437da5;
/* rgb */ color: rgb(67, 125, 165);
/* oklch */ color: oklch(56.7% 0.087 240.7);

Tailwind

colors: {
  custom: {
    50: '#7fa2c0',
    500: '#437da5',
    950: '#000000',
  },
}

SCSS

$custom: #437da5;
$custom-light: #7fa2c0;
$custom-dark: #000000;

JSON

{
  "hex": "#437da5",
  "rgb": {
    "r": 67,
    "g": 125,
    "b": 165
  },
  "hsl": {
    "h": 204.49,
    "s": 42.241,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56747,
    "c": 0.08697,
    "h": 240.7
  },
  "luminance": 0.18577
}

Semantic roles & 50–950 ramp

primary

#437DA5

secondary

#BD9D86

accent

#8856D2

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0F12

muted

#7C7E81

Preview Lab

Preview with #437DA5

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

Preview Lab → · Contrast checker → · Palette generator →