#4379CF#4379CF

#4379CF is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.2% C 0.144 H 259.3°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#4379CF
RGB	rgb(67, 121, 207)
HSL	hsl(217, 59%, 54%)
HSV	hsv(217, 68%, 81%)
CMYK	cmyk(67.6%, 41.5%, 0%, 18.8%)
CIE-LAB	lab(51.12, 10.11, -49.77)
CIE-LCH	lch(51.12, 50.78, 281.49°)
OKLab	oklab(58.16% -0.0267 -0.142)
OKLCH	oklch(58.16% 0.145 259.3)
XYZ	xyz(20.4106, 19.3710, 61.6827)
Luminance	0.1937 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4379CF #CF9943

analogous

#43BFCF #4379CF #5343CF

triadic

#4379CF #CF4379 #79CF43

tetradic

#4379CF #CF43BF #CF9943 #43CF53

square

#4379CF #CF43BF #CF9943 #43CF53

split-complementary

#4379CF #CF5343 #BFCF43

monochromatic

#1F4279 #2B5CAA #4379CF #749CDB #A5BEE8

Accessibility & contrast

On white

4.31

#4379CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#4379CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4379CF

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4379CF	#FFFFFF	#000000	##000000
##4379CF	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5181D2

Deuteranopia (green-blind)

#3A74CD

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4379cf;
/* rgb */ color: rgb(67, 121, 207);
/* oklch */ color: oklch(58.2% 0.144 259.3);

Tailwind

colors: {
  custom: {
    50: '#869fde',
    500: '#4379cf',
    950: '#000000',
  },
}

SCSS

$custom: #4379cf;
$custom-light: #869fde;
$custom-dark: #000000;

JSON

{
  "hex": "#4379cf",
  "rgb": {
    "r": 67,
    "g": 121,
    "b": 207
  },
  "hsl": {
    "h": 216.857,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.58161,
    "c": 0.1445,
    "h": 259.3
  },
  "luminance": 0.19373
}

Semantic roles & 50–950 ramp

primary

#4379CF

secondary

#D5BE99

accent

#A645E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4379CF

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

Preview Lab → · Contrast checker → · Palette generator →