#4371CF#4371CF

#4371CF is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.4% C 0.154 H 262.8°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4371CF
RGB	rgb(67, 113, 207)
HSL	hsl(220, 59%, 54%)
HSV	hsv(220, 68%, 81%)
CMYK	cmyk(67.6%, 45.4%, 0%, 18.8%)
CIE-LAB	lab(48.89, 15.08, -53.33)
CIE-LCH	lch(48.89, 55.42, 285.79°)
OKLab	oklab(56.44% -0.0192 -0.1526)
OKLCH	oklch(56.44% 0.154 262.8)
XYZ	xyz(19.4784, 17.5066, 61.3720)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371CF #CFA143

analogous

#43B7CF #4371CF #5B43CF

triadic

#4371CF #CF4371 #71CF43

tetradic

#4371CF #CF43B7 #CFA143 #43CF5B

square

#4371CF #CF43B7 #CFA143 #43CF5B

split-complementary

#4371CF #CF5B43 #B7CF43

monochromatic

#1F3C79 #2B55AA #4371CF #7496DB #A5BBE8

Accessibility & contrast

On white

4.66

#4371CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#4371CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4371CF

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371CF	#FFFFFF	#000000	##FFFFFF
##4371CF	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427BD3

Deuteranopia (green-blind)

#276ECD

Tritanopia (blue-blind)

#008796

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4371cf;
/* rgb */ color: rgb(67, 113, 207);
/* oklch */ color: oklch(56.4% 0.154 262.8);

Tailwind

colors: {
  custom: {
    50: '#8699de',
    500: '#4371cf',
    950: '#000000',
  },
}

SCSS

$custom: #4371cf;
$custom-light: #8699de;
$custom-dark: #000000;

JSON

{
  "hex": "#4371cf",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 207
  },
  "hsl": {
    "h": 220.286,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.56444,
    "c": 0.15378,
    "h": 262.8
  },
  "luminance": 0.17509
}

Semantic roles & 50–950 ramp

primary

#4371CF

secondary

#D5C199

accent

#AF45E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #4371CF

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

Preview Lab → · Contrast checker → · Palette generator →