#4373BC#4373BC

#4373BC is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.7% C 0.126 H 258.6°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4373BC
RGB	rgb(67, 115, 188)
HSL	hsl(216, 47%, 50%)
HSV	hsv(216, 64%, 74%)
CMYK	cmyk(64.4%, 38.8%, 0%, 26.3%)
CIE-LAB	lab(48.37, 7.11, -43.26)
CIE-LCH	lch(48.37, 43.85, 279.34°)
OKLab	oklab(55.68% -0.0249 -0.123)
OKLCH	oklch(55.68% 0.126 258.6)
XYZ	xyz(17.5193, 17.0839, 49.9415)
Luminance	0.1709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4373BC #BC8C43

analogous

#43B0BC #4373BC #4F43BC

triadic

#4373BC #BC4373 #73BC43

tetradic

#4373BC #BC43B0 #BC8C43 #43BC4F

square

#4373BC #BC43B0 #BC8C43 #43BC4F

split-complementary

#4373BC #BC4F43 #B0BC43

monochromatic

#233C62 #33578F #4373BC #7095CC #9DB6DC

Accessibility & contrast

On white

4.75

#4373BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4373BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4373BC

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4373BC	#FFFFFF	#000000	##FFFFFF
##4373BC	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BF

Deuteranopia (green-blind)

#416EBA

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4373bc;
/* rgb */ color: rgb(67, 115, 188);
/* oklch */ color: oklch(55.7% 0.126 258.6);

Tailwind

colors: {
  custom: {
    50: '#839ad0',
    500: '#4373bc',
    950: '#000000',
  },
}

SCSS

$custom: #4373bc;
$custom-light: #839ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4373bc",
  "rgb": {
    "r": 67,
    "g": 115,
    "b": 188
  },
  "hsl": {
    "h": 216.198,
    "s": 47.451,
    "l": 50
  },
  "oklch": {
    "l": 0.55685,
    "c": 0.1255,
    "h": 258.6
  },
  "luminance": 0.17086
}

Semantic roles & 50–950 ramp

primary

#4373BC

secondary

#C9B392

accent

#A251D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4373BC

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

Preview Lab → · Contrast checker → · Palette generator →