#4374CB#4374CB

#4374CB is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.8% C 0.145 H 261.0°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4374CB
RGB	rgb(67, 116, 203)
HSL	hsl(218, 57%, 53%)
HSV	hsv(218, 67%, 80%)
CMYK	cmyk(67%, 42.9%, 0%, 20.4%)
CIE-LAB	lab(49.49, 11.79, -50.09)
CIE-LCH	lch(49.49, 51.46, 283.24°)
OKLab	oklab(56.83% -0.0227 -0.143)
OKLCH	oklch(56.83% 0.145 261)
XYZ	xyz(19.3358, 17.9940, 58.9425)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4374CB #CB9A43

analogous

#43B8CB #4374CB #5643CB

triadic

#4374CB #CB4374 #74CB43

tetradic

#4374CB #CB43B8 #CB9A43 #43CB56

square

#4374CB #CB43B8 #CB9A43 #43CB56

split-complementary

#4374CB #CB5643 #B8CB43

monochromatic

#203E74 #2D58A4 #4374CB #7397D8 #A3BBE6

Accessibility & contrast

On white

4.57

#4374CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#4374CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4374CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4374CB	#FFFFFF	#000000	##000000
##4374CB	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7CCE

Deuteranopia (green-blind)

#3470C9

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4374cb;
/* rgb */ color: rgb(67, 116, 203);
/* oklch */ color: oklch(56.8% 0.145 261.0);

Tailwind

colors: {
  custom: {
    50: '#859bdb',
    500: '#4374cb',
    950: '#000000',
  },
}

SCSS

$custom: #4374cb;
$custom-light: #859bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4374cb",
  "rgb": {
    "r": 67,
    "g": 116,
    "b": 203
  },
  "hsl": {
    "h": 218.382,
    "s": 56.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.56827,
    "c": 0.14481,
    "h": 261
  },
  "luminance": 0.17996
}

Semantic roles & 50–950 ramp

primary

#4374CB

secondary

#D2BD98

accent

#A948E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4374CB

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

Preview Lab → · Contrast checker → · Palette generator →