#4273AD#4273AD

#4273AD is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.8% C 0.106 H 253.8°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#4273AD
RGB	rgb(66, 115, 173)
HSL	hsl(213, 45%, 47%)
HSV	hsv(213, 62%, 68%)
CMYK	cmyk(61.8%, 33.5%, 0%, 32.2%)
CIE-LAB	lab(47.54, 1.72, -35.87)
CIE-LCH	lch(47.54, 35.92, 272.75°)
OKLab	oklab(54.77% -0.0295 -0.1014)
OKLCH	oklch(54.77% 0.106 253.8)
XYZ	xyz(15.9176, 16.4354, 41.8606)
Luminance	0.1644 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4273AD #AD7C42

analogous

#42A9AD #4273AD #4642AD

triadic

#4273AD #AD4273 #73AD42

tetradic

#4273AD #AD42A9 #AD7C42 #42AD46

square

#4273AD #AD42A9 #AD7C42 #42AD46

split-complementary

#4273AD #AD4642 #A9AD42

monochromatic

#203854 #315681 #4273AD #6792C5 #93B2D6

Accessibility & contrast

On white

4.90

#4273AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#4273AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4273AD

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4273AD	#FFFFFF	#000000	##FFFFFF
##4273AD	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A76AF

Deuteranopia (green-blind)

#4C6CAC

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4273ad;
/* rgb */ color: rgb(66, 115, 173);
/* oklch */ color: oklch(54.8% 0.106 253.8);

Tailwind

colors: {
  custom: {
    50: '#809bc5',
    500: '#4273ad',
    950: '#000000',
  },
}

SCSS

$custom: #4273ad;
$custom-light: #809bc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4273ad",
  "rgb": {
    "r": 66,
    "g": 115,
    "b": 173
  },
  "hsl": {
    "h": 212.523,
    "s": 44.77,
    "l": 46.863
  },
  "oklch": {
    "l": 0.54774,
    "c": 0.10566,
    "h": 253.8
  },
  "luminance": 0.16437
}

Semantic roles & 50–950 ramp

primary

#4273AD

secondary

#C1A889

accent

#9953D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4273AD

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

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