#4373D8#4373D8

#4373D8 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.5% C 0.164 H 263.1°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4373D8
RGB	rgb(67, 115, 216)
HSL	hsl(221, 66%, 55%)
HSV	hsv(221, 69%, 85%)
CMYK	cmyk(69%, 46.8%, 0%, 15.3%)
CIE-LAB	lab(49.99, 17.04, -56.68)
CIE-LCH	lch(49.99, 59.19, 286.73°)
OKLab	oklab(57.46% -0.0196 -0.1624)
OKLCH	oklch(57.46% 0.164 263.1)
XYZ	xyz(20.8358, 18.4105, 67.4079)
Luminance	0.1841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4373D8 #D8A843

analogous

#43BED8 #4373D8 #5D43D8

triadic

#4373D8 #D84373 #73D843

tetradic

#4373D8 #D843BE #D8A843 #43D85D

square

#4373D8 #D843BE #D8A843 #43D85D

split-complementary

#4373D8 #D85D43 #BED843

monochromatic

#1C3E85 #2655B8 #4373D8 #7699E3 #A8BEED

Accessibility & contrast

On white

4.48

#4373D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#4373D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4373D8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4373D8	#FFFFFF	#000000	##000000
##4373D8	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E7EDC

Deuteranopia (green-blind)

#1C70D6

Tritanopia (blue-blind)

#008B9B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4373d8;
/* rgb */ color: rgb(67, 115, 216);
/* oklch */ color: oklch(57.5% 0.164 263.1);

Tailwind

colors: {
  custom: {
    50: '#889ae5',
    500: '#4373d8',
    950: '#000000',
  },
}

SCSS

$custom: #4373d8;
$custom-light: #889ae5;
$custom-dark: #000000;

JSON

{
  "hex": "#4373d8",
  "rgb": {
    "r": 67,
    "g": 115,
    "b": 216
  },
  "hsl": {
    "h": 220.671,
    "s": 65.639,
    "l": 55.49
  },
  "oklch": {
    "l": 0.57464,
    "c": 0.16359,
    "h": 263.1
  },
  "luminance": 0.18413
}

Semantic roles & 50–950 ramp

primary

#4373D8

secondary

#DAC69C

accent

#B23FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4373D8

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

Preview Lab → · Contrast checker → · Palette generator →