#4279AD#4279AD

#4279AD is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.2% C 0.100 H 248.8°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4279AD
RGB	rgb(66, 121, 173)
HSL	hsl(209, 45%, 47%)
HSV	hsv(209, 62%, 68%)
CMYK	cmyk(61.8%, 30.1%, 0%, 32.2%)
CIE-LAB	lab(49.31, -1.90, -33.09)
CIE-LCH	lch(49.31, 33.15, 266.72°)
OKLab	oklab(56.16% -0.0362 -0.0933)
OKLCH	oklch(56.16% 0.1 248.8)
XYZ	xyz(16.6242, 17.8486, 42.0961)
Luminance	0.1785 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4279AD #AD7642

analogous

#42ADAC #4279AD #4244AD

triadic

#4279AD #AD4279 #79AD42

tetradic

#4279AD #AC42AD #AD7642 #44AD42

square

#4279AD #AC42AD #AD7642 #44AD42

split-complementary

#4279AD #AD4244 #ADAC42

monochromatic

#203B54 #315A81 #4279AD #6797C5 #93B6D6

Accessibility & contrast

On white

4.60

#4279AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4279AD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4279AD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4279AD	#FFFFFF	#000000	##FFFFFF
##4279AD	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAF

Deuteranopia (green-blind)

#5471AC

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4279ad;
/* rgb */ color: rgb(66, 121, 173);
/* oklch */ color: oklch(56.2% 0.100 248.8);

Tailwind

colors: {
  custom: {
    50: '#809fc5',
    500: '#4279ad',
    950: '#000000',
  },
}

SCSS

$custom: #4279ad;
$custom-light: #809fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4279ad",
  "rgb": {
    "r": 66,
    "g": 121,
    "b": 173
  },
  "hsl": {
    "h": 209.159,
    "s": 44.77,
    "l": 46.863
  },
  "oklch": {
    "l": 0.56164,
    "c": 0.10007,
    "h": 248.8
  },
  "luminance": 0.1785
}

Semantic roles & 50–950 ramp

primary

#4279AD

secondary

#C1A589

accent

#9253D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4279AD

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

Preview Lab → · Contrast checker → · Palette generator →