#427CA5#427CA5

#427CA5 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.5% C 0.088 H 241.4°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#427CA5
RGB	rgb(66, 124, 165)
HSL	hsl(205, 43%, 45%)
HSV	hsv(205, 60%, 65%)
CMYK	cmyk(60%, 24.8%, 0%, 35.3%)
CIE-LAB	lab(49.84, -6.34, -27.61)
CIE-LCH	lch(49.84, 28.33, 257.06°)
OKLab	oklab(56.46% -0.0421 -0.0774)
OKLCH	oklch(56.46% 0.088 241.4)
XYZ	xyz(16.2434, 18.2887, 38.2641)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CA5 #A56B42

analogous

#42A59C #427CA5 #424BA5

triadic

#427CA5 #A5427C #7CA542

tetradic

#427CA5 #9C42A5 #A56B42 #4BA542

square

#427CA5 #9C42A5 #A56B42 #4BA542

split-complementary

#427CA5 #A5424B #A59C42

monochromatic

#1F3A4E #315B79 #427CA5 #639AC1 #8FB6D2

Accessibility & contrast

On white

4.51

#427CA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#427CA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CA5

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CA5	#FFFFFF	#000000	##000000
##427CA5	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7CA7

Deuteranopia (green-blind)

#5C72A4

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #427ca5;
/* rgb */ color: rgb(66, 124, 165);
/* oklch */ color: oklch(56.5% 0.088 241.4);

Tailwind

colors: {
  custom: {
    50: '#7fa1c0',
    500: '#427ca5',
    950: '#000000',
  },
}

SCSS

$custom: #427ca5;
$custom-light: #7fa1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#427ca5",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 165
  },
  "hsl": {
    "h": 204.848,
    "s": 42.857,
    "l": 45.294
  },
  "oklch": {
    "l": 0.56464,
    "c": 0.08815,
    "h": 241.4
  },
  "luminance": 0.1829
}

Semantic roles & 50–950 ramp

primary

#427CA5

secondary

#BD9D85

accent

#8955D3

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0F12

muted

#7C7E81

Preview Lab

Preview with #427CA5

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

Preview Lab → · Contrast checker → · Palette generator →