#4079CB#4079CB

#4079CB is a mid, vivid blue. Relative luminance 0.191; OKLCH L 57.8% C 0.140 H 257.7°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4079CB
RGB	rgb(64, 121, 203)
HSL	hsl(215, 57%, 52%)
HSV	hsv(215, 68%, 80%)
CMYK	cmyk(68.5%, 40.4%, 0%, 20.4%)
CIE-LAB	lab(50.77, 8.22, -48.04)
CIE-LCH	lch(50.77, 48.74, 279.71°)
OKLab	oklab(57.79% -0.0299 -0.137)
OKLCH	oklch(57.79% 0.14 257.7)
XYZ	xyz(19.7273, 19.0745, 59.1304)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4079CB #CB9240

analogous

#40BECB #4079CB #4D40CB

triadic

#4079CB #CB4079 #79CB40

tetradic

#4079CB #CB40BE #CB9240 #40CB4D

square

#4079CB #CB40BE #CB9240 #40CB4D

split-complementary

#4079CB #CB4D40 #BECB40

monochromatic

#1F4172 #2C5CA2 #4079CB #709BD8 #A0BCE5

Accessibility & contrast

On white

4.36

#4079CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4079CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4079CB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4079CB	#FFFFFF	#000000	##000000
##4079CB	1.00	4.36	4.82	4.82
#FFFFFF	4.36	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)

#5380CE

Deuteranopia (green-blind)

#3D73C9

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4079cb;
/* rgb */ color: rgb(64, 121, 203);
/* oklch */ color: oklch(57.8% 0.140 257.7);

Tailwind

colors: {
  custom: {
    50: '#849fdb',
    500: '#4079cb',
    950: '#000000',
  },
}

SCSS

$custom: #4079cb;
$custom-light: #849fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#4079cb",
  "rgb": {
    "r": 64,
    "g": 121,
    "b": 203
  },
  "hsl": {
    "h": 215.396,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57788,
    "c": 0.14021,
    "h": 257.7
  },
  "luminance": 0.19077
}

Semantic roles & 50–950 ramp

primary

#4079CB

secondary

#D2B995

accent

#A247E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4079CB

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

Preview Lab → · Contrast checker → · Palette generator →