#4374E1#4374E1

#4374E1 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.3% C 0.174 H 263.7°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4374E1
RGB	rgb(67, 116, 225)
HSL	hsl(221, 72%, 57%)
HSV	hsv(221, 70%, 88%)
CMYK	cmyk(70.2%, 48.4%, 0%, 11.8%)
CIE-LAB	lab(50.83, 19.63, -60.42)
CIE-LCH	lch(50.83, 63.53, 288.00°)
OKLab	oklab(58.28% -0.0192 -0.1734)
OKLCH	oklch(58.28% 0.174 263.7)
XYZ	xyz(22.1459, 19.1180, 73.7426)
Luminance	0.1912 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4374E1 #E1B043

analogous

#43C3E1 #4374E1 #6143E1

triadic

#4374E1 #E14374 #74E143

tetradic

#4374E1 #E143C3 #E1B043 #43E161

square

#4374E1 #E143C3 #E1B043 #43E161

split-complementary

#4374E1 #E16143 #C3E143

monochromatic

#173D92 #2054C7 #4374E1 #789BE9 #ADC2F2

Accessibility & contrast

On white

4.35

#4374E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4374E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4374E1

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4374E1	#FFFFFF	#000000	##000000
##4374E1	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3781E5

Deuteranopia (green-blind)

#0072DF

Tritanopia (blue-blind)

#008EA0

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4374e1;
/* rgb */ color: rgb(67, 116, 225);
/* oklch */ color: oklch(58.3% 0.174 263.7);

Tailwind

colors: {
  custom: {
    50: '#899beb',
    500: '#4374e1',
    950: '#000000',
  },
}

SCSS

$custom: #4374e1;
$custom-light: #899beb;
$custom-dark: #000000;

JSON

{
  "hex": "#4374e1",
  "rgb": {
    "r": 67,
    "g": 116,
    "b": 225
  },
  "hsl": {
    "h": 221.392,
    "s": 72.477,
    "l": 57.255
  },
  "oklch": {
    "l": 0.58283,
    "c": 0.17446,
    "h": 263.7
  },
  "luminance": 0.1912
}

Semantic roles & 50–950 ramp

primary

#4374E1

secondary

#E0CCA0

accent

#B739EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4374E1

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

Preview Lab → · Contrast checker → · Palette generator →