#427BA4#427BA4

#427BA4 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.088 H 241.9°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#427BA4
RGB	rgb(66, 123, 164)
HSL	hsl(205, 43%, 45%)
HSV	hsv(205, 60%, 64%)
CMYK	cmyk(59.8%, 25%, 0%, 35.7%)
CIE-LAB	lab(49.50, -6.09, -27.57)
CIE-LCH	lch(49.50, 28.23, 257.55°)
OKLab	oklab(56.18% -0.0413 -0.0773)
OKLCH	oklch(56.18% 0.088 241.9)
XYZ	xyz(16.0281, 18.0030, 37.7450)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BA4 #A46B42

analogous

#42A49C #427BA4 #424AA4

triadic

#427BA4 #A4427B #7BA442

tetradic

#427BA4 #9C42A4 #A46B42 #4AA442

square

#427BA4 #9C42A4 #A46B42 #4AA442

split-complementary

#427BA4 #A4424A #A49C42

monochromatic

#1F3A4D #305A78 #427BA4 #6399C0 #8FB6D2

Accessibility & contrast

On white

4.56

#427BA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#427BA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BA4

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BA4	#FFFFFF	#000000	##000000
##427BA4	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697BA6

Deuteranopia (green-blind)

#5C71A3

Tritanopia (blue-blind)

#008589

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #427ba4;
/* rgb */ color: rgb(66, 123, 164);
/* oklch */ color: oklch(56.2% 0.088 241.9);

Tailwind

colors: {
  custom: {
    50: '#7fa1bf',
    500: '#427ba4',
    950: '#000000',
  },
}

SCSS

$custom: #427ba4;
$custom-light: #7fa1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#427ba4",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 164
  },
  "hsl": {
    "h": 205.102,
    "s": 42.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56177,
    "c": 0.08766,
    "h": 241.9
  },
  "luminance": 0.18005
}

Semantic roles & 50–950 ramp

primary

#427BA4

secondary

#BD9C85

accent

#8A55D2

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #427BA4

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

Preview Lab → · Contrast checker → · Palette generator →