#4273AC#4273AC

#4273AC is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.7% C 0.104 H 253.4°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#4273AC
RGB	rgb(66, 115, 172)
HSL	hsl(212, 45%, 47%)
HSV	hsv(212, 62%, 67%)
CMYK	cmyk(61.6%, 33.1%, 0%, 32.5%)
CIE-LAB	lab(47.49, 1.38, -35.37)
CIE-LCH	lch(47.49, 35.40, 272.23°)
OKLab	oklab(54.72% -0.0298 -0.1)
OKLCH	oklch(54.72% 0.104 253.4)
XYZ	xyz(15.8212, 16.3968, 41.3529)
Luminance	0.1640 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4273AC #AC7B42

analogous

#42A8AC #4273AC #4642AC

triadic

#4273AC #AC4273 #73AC42

tetradic

#4273AC #AC42A8 #AC7B42 #42AC46

square

#4273AC #AC42A8 #AC7B42 #42AC46

split-complementary

#4273AC #AC4642 #A8AC42

monochromatic

#203854 #315580 #4273AC #6792C5 #93B2D6

Accessibility & contrast

On white

4.91

#4273AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#4273AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4273AC

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4273AC	#FFFFFF	#000000	##FFFFFF
##4273AC	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B76AE

Deuteranopia (green-blind)

#4D6CAB

Tritanopia (blue-blind)

#008087

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4273ac;
/* rgb */ color: rgb(66, 115, 172);
/* oklch */ color: oklch(54.7% 0.104 253.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4273ac",
  "rgb": {
    "r": 66,
    "g": 115,
    "b": 172
  },
  "hsl": {
    "h": 212.264,
    "s": 44.538,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54719,
    "c": 0.10433,
    "h": 253.4
  },
  "luminance": 0.16398
}

Semantic roles & 50–950 ramp

primary

#4273AC

secondary

#C1A789

accent

#9954D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4273AC

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

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