#4373BB#4373BB

#4373BB is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.6% C 0.124 H 258.3°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4373BB
RGB	rgb(67, 115, 187)
HSL	hsl(216, 47%, 50%)
HSV	hsv(216, 64%, 73%)
CMYK	cmyk(64.2%, 38.5%, 0%, 26.7%)
CIE-LAB	lab(48.31, 6.76, -42.77)
CIE-LCH	lch(48.31, 43.30, 278.99°)
OKLab	oklab(55.63% -0.0251 -0.1216)
OKLCH	oklch(55.63% 0.124 258.3)
XYZ	xyz(17.4119, 17.0410, 49.3757)
Luminance	0.1704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4373BB #BB8B43

analogous

#43AFBB #4373BB #4F43BB

triadic

#4373BB #BB4373 #73BB43

tetradic

#4373BB #BB43AF #BB8B43 #43BB4F

square

#4373BB #BB43AF #BB8B43 #43BB4F

split-complementary

#4373BB #BB4F43 #AFBB43

monochromatic

#233C61 #33578E #4373BB #7094CC #9DB6DC

Accessibility & contrast

On white

4.76

#4373BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#4373BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4373BB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4373BB	#FFFFFF	#000000	##FFFFFF
##4373BB	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BE

Deuteranopia (green-blind)

#426EBA

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4373bb;
/* rgb */ color: rgb(67, 115, 187);
/* oklch */ color: oklch(55.6% 0.124 258.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4373bb",
  "rgb": {
    "r": 67,
    "g": 115,
    "b": 187
  },
  "hsl": {
    "h": 216,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55625,
    "c": 0.12415,
    "h": 258.3
  },
  "luminance": 0.17043
}

Semantic roles & 50–950 ramp

primary

#4373BB

secondary

#C8B292

accent

#A151D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4373BB

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

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