#4374C9#4374C9

#4374C9 is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.7% C 0.142 H 260.6°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#4374C9
RGB	rgb(67, 116, 201)
HSL	hsl(218, 55%, 53%)
HSV	hsv(218, 67%, 79%)
CMYK	cmyk(66.7%, 42.3%, 0%, 21.2%)
CIE-LAB	lab(49.37, 11.08, -49.13)
CIE-LCH	lch(49.37, 50.36, 282.71°)
OKLab	oklab(56.7% -0.0231 -0.1402)
OKLCH	oklch(56.7% 0.142 260.6)
XYZ	xyz(19.0990, 17.8992, 57.6954)
Luminance	0.1790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4374C9 #C99843

analogous

#43B7C9 #4374C9 #5543C9

triadic

#4374C9 #C94374 #74C943

tetradic

#4374C9 #C943B7 #C99843 #43C955

square

#4374C9 #C943B7 #C99843 #43C955

split-complementary

#4374C9 #C95543 #B7C943

monochromatic

#203E71 #2E58A1 #4374C9 #7397D7 #A2BAE4

Accessibility & contrast

On white

4.58

#4374C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#4374C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4374C9

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4374C9	#FFFFFF	#000000	##000000
##4374C9	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7CCC

Deuteranopia (green-blind)

#3770C7

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4374c9;
/* rgb */ color: rgb(67, 116, 201);
/* oklch */ color: oklch(56.7% 0.142 260.6);

Tailwind

colors: {
  custom: {
    50: '#859bda',
    500: '#4374c9',
    950: '#000000',
  },
}

SCSS

$custom: #4374c9;
$custom-light: #859bda;
$custom-dark: #000000;

JSON

{
  "hex": "#4374c9",
  "rgb": {
    "r": 67,
    "g": 116,
    "b": 201
  },
  "hsl": {
    "h": 218.06,
    "s": 55.372,
    "l": 52.549
  },
  "oklch": {
    "l": 0.56701,
    "c": 0.14209,
    "h": 260.6
  },
  "luminance": 0.17901
}

Semantic roles & 50–950 ramp

primary

#4374C9

secondary

#D1BC97

accent

#A849DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4374C9

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

Preview Lab → · Contrast checker → · Palette generator →