#427AA5#427AA5

#427AA5 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.0% C 0.089 H 243.6°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#427AA5
RGB	rgb(66, 122, 165)
HSL	hsl(206, 43%, 45%)
HSV	hsv(206, 60%, 65%)
CMYK	cmyk(60%, 26.1%, 0%, 35.3%)
CIE-LAB	lab(49.24, -5.17, -28.55)
CIE-LCH	lch(49.24, 29.01, 259.73°)
OKLab	oklab(55.99% -0.0399 -0.0801)
OKLCH	oklch(55.99% 0.09 243.6)
XYZ	xyz(15.9953, 17.7925, 38.1814)
Luminance	0.1779 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AA5 #A56D42

analogous

#42A59F #427AA5 #4248A5

triadic

#427AA5 #A5427A #7AA542

tetradic

#427AA5 #9F42A5 #A56D42 #48A542

square

#427AA5 #9F42A5 #A56D42 #48A542

split-complementary

#427AA5 #A54248 #A59F42

monochromatic

#1F394E #315A79 #427AA5 #6398C1 #8FB5D2

Accessibility & contrast

On white

4.61

#427AA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#427AA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #427AA5

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AA5	#FFFFFF	#000000	##FFFFFF
##427AA5	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677BA7

Deuteranopia (green-blind)

#5A71A4

Tritanopia (blue-blind)

#008489

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #427aa5;
/* rgb */ color: rgb(66, 122, 165);
/* oklch */ color: oklch(56.0% 0.089 243.6);

Tailwind

colors: {
  custom: {
    50: '#7fa0c0',
    500: '#427aa5',
    950: '#000000',
  },
}

SCSS

$custom: #427aa5;
$custom-light: #7fa0c0;
$custom-dark: #000000;

JSON

{
  "hex": "#427aa5",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 165
  },
  "hsl": {
    "h": 206.061,
    "s": 42.857,
    "l": 45.294
  },
  "oklch": {
    "l": 0.55989,
    "c": 0.0895,
    "h": 243.6
  },
  "luminance": 0.17794
}

Semantic roles & 50–950 ramp

primary

#427AA5

secondary

#BD9E85

accent

#8C55D3

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #427AA5

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

Preview Lab → · Contrast checker → · Palette generator →