#437ADF#437ADF

#437ADF is a mid, vivid blue. Relative luminance 0.204; OKLCH L 59.4% C 0.165 H 261.4°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#437ADF
RGB	rgb(67, 122, 223)
HSL	hsl(219, 71%, 57%)
HSV	hsv(219, 70%, 87%)
CMYK	cmyk(70%, 45.3%, 0%, 12.5%)
CIE-LAB	lab(52.33, 15.19, -56.88)
CIE-LCH	lch(52.33, 58.87, 284.95°)
OKLab	oklab(59.4% -0.0247 -0.1629)
OKLCH	oklch(59.4% 0.165 261.4)
XYZ	xyz(22.5888, 20.4377, 72.5521)
Luminance	0.2044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#437ADF #DFA843

analogous

#43C8DF #437ADF #5A43DF

triadic

#437ADF #DF437A #7ADF43

tetradic

#437ADF #DF43C8 #DFA843 #43DF5A

square

#437ADF #DF43C8 #DFA843 #43DF5A

split-complementary

#437ADF #DF5A43 #C8DF43

monochromatic

#18428F #215AC4 #437ADF #779FE8 #ACC4F1

Accessibility & contrast

On white

4.13

#437ADF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#437ADF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #437ADF

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##437ADF	#FFFFFF	#000000	##000000
##437ADF	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4785E3

Deuteranopia (green-blind)

#2776DD

Tritanopia (blue-blind)

#0092A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #437adf;
/* rgb */ color: rgb(67, 122, 223);
/* oklch */ color: oklch(59.4% 0.165 261.4);

Tailwind

colors: {
  custom: {
    50: '#899fe9',
    500: '#437adf',
    950: '#000000',
  },
}

SCSS

$custom: #437adf;
$custom-light: #899fe9;
$custom-dark: #000000;

JSON

{
  "hex": "#437adf",
  "rgb": {
    "r": 67,
    "g": 122,
    "b": 223
  },
  "hsl": {
    "h": 218.846,
    "s": 70.909,
    "l": 56.863
  },
  "oklch": {
    "l": 0.59396,
    "c": 0.16475,
    "h": 261.4
  },
  "luminance": 0.2044
}

Semantic roles & 50–950 ramp

primary

#437ADF

secondary

#DFC89F

accent

#AE3AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #437ADF

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

Preview Lab → · Contrast checker → · Palette generator →