#4279B2#4279B2

#4279B2 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.4% C 0.106 H 251.0°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4279B2
RGB	rgb(66, 121, 178)
HSL	hsl(211, 46%, 48%)
HSV	hsv(211, 63%, 70%)
CMYK	cmyk(62.9%, 32%, 0%, 30.2%)
CIE-LAB	lab(49.55, -0.19, -35.61)
CIE-LCH	lch(49.55, 35.62, 269.69°)
OKLab	oklab(56.43% -0.0347 -0.1006)
OKLCH	oklch(56.43% 0.106 251)
XYZ	xyz(17.1171, 18.0457, 44.6920)
Luminance	0.1805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4279B2 #B27B42

analogous

#42B1B2 #4279B2 #4342B2

triadic

#4279B2 #B24279 #79B242

tetradic

#4279B2 #B242B1 #B27B42 #42B243

square

#4279B2 #B242B1 #B27B42 #42B243

split-complementary

#4279B2 #B24342 #B1B242

monochromatic

#213C59 #315B85 #4279B2 #6A98C8 #96B7D8

Accessibility & contrast

On white

4.56

#4279B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#4279B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4279B2

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4279B2	#FFFFFF	#000000	##000000
##4279B2	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617CB4

Deuteranopia (green-blind)

#5171B1

Tritanopia (blue-blind)

#00868D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4279b2;
/* rgb */ color: rgb(66, 121, 178);
/* oklch */ color: oklch(56.4% 0.106 251.0);

Tailwind

colors: {
  custom: {
    50: '#819fc9',
    500: '#4279b2',
    950: '#000000',
  },
}

SCSS

$custom: #4279b2;
$custom-light: #819fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4279b2",
  "rgb": {
    "r": 66,
    "g": 121,
    "b": 178
  },
  "hsl": {
    "h": 210.536,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56431,
    "c": 0.10643,
    "h": 251
  },
  "luminance": 0.18047
}

Semantic roles & 50–950 ramp

primary

#4279B2

secondary

#C4A88C

accent

#9552D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4279B2

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

Preview Lab → · Contrast checker → · Palette generator →