#437CD0#437CD0

#437CD0 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 58.9% C 0.142 H 258.1°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#437CD0
RGB	rgb(67, 124, 208)
HSL	hsl(216, 60%, 54%)
HSV	hsv(216, 68%, 82%)
CMYK	cmyk(67.8%, 40.4%, 0%, 18.4%)
CIE-LAB	lab(52.02, 8.63, -48.90)
CIE-LCH	lch(52.02, 49.65, 280.00°)
OKLab	oklab(58.88% -0.0294 -0.1394)
OKLCH	oklch(58.88% 0.142 258.1)
XYZ	xyz(20.9034, 20.1605, 62.4520)
Luminance	0.2016 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437CD0 #D09743

analogous

#43C2D0 #437CD0 #5143D0

triadic

#437CD0 #D0437C #7CD043

tetradic

#437CD0 #D043C2 #D09743 #43D051

square

#437CD0 #D043C2 #D09743 #43D051

split-complementary

#437CD0 #D05143 #C2D043

monochromatic

#1F447A #2B5FAB #437CD0 #749EDC #A5C0E8

Accessibility & contrast

On white

4.17

#437CD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#437CD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437CD0

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437CD0	#FFFFFF	#000000	##000000
##437CD0	1.00	4.17	5.03	5.03
#FFFFFF	4.17	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)

#5583D3

Deuteranopia (green-blind)

#3F76CE

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #437cd0;
/* rgb */ color: rgb(67, 124, 208);
/* oklch */ color: oklch(58.9% 0.142 258.1);

Tailwind

colors: {
  custom: {
    50: '#86a1df',
    500: '#437cd0',
    950: '#000000',
  },
}

SCSS

$custom: #437cd0;
$custom-light: #86a1df;
$custom-dark: #000000;

JSON

{
  "hex": "#437cd0",
  "rgb": {
    "r": 67,
    "g": 124,
    "b": 208
  },
  "hsl": {
    "h": 215.745,
    "s": 60,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58877,
    "c": 0.14248,
    "h": 258.1
  },
  "luminance": 0.20163
}

Semantic roles & 50–950 ramp

primary

#437CD0

secondary

#D5BD99

accent

#A345E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #437CD0

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

Preview Lab → · Contrast checker → · Palette generator →