#427BBD#427BBD

#427BBD is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.5% C 0.119 H 253.5°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#427BBD
RGB	rgb(66, 123, 189)
HSL	hsl(212, 48%, 50%)
HSV	hsv(212, 65%, 74%)
CMYK	cmyk(65.1%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(50.68, 2.40, -40.17)
CIE-LCH	lch(50.68, 40.25, 273.42°)
OKLab	oklab(57.5% -0.0337 -0.1139)
OKLCH	oklch(57.5% 0.119 253.5)
XYZ	xyz(18.5117, 18.9965, 50.8254)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BBD #BD8442

analogous

#42B8BD #427BBD #4742BD

triadic

#427BBD #BD427B #7BBD42

tetradic

#427BBD #BD42B8 #BD8442 #42BD47

square

#427BBD #BD42B8 #BD8442 #42BD47

split-complementary

#427BBD #BD4742 #B8BD42

monochromatic

#224062 #325D90 #427BBD #6F9BCD #9DBADD

Accessibility & contrast

On white

4.38

#427BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#427BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BBD

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BBD	#FFFFFF	#000000	##000000
##427BBD	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7FC0

Deuteranopia (green-blind)

#4D73BC

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427bbd;
/* rgb */ color: rgb(66, 123, 189);
/* oklch */ color: oklch(57.5% 0.119 253.5);

Tailwind

colors: {
  custom: {
    50: '#82a0d1',
    500: '#427bbd',
    950: '#000000',
  },
}

SCSS

$custom: #427bbd;
$custom-light: #82a0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#427bbd",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 212.195,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.57497,
    "c": 0.11878,
    "h": 253.5
  },
  "luminance": 0.18998
}

Semantic roles & 50–950 ramp

primary

#427BBD

secondary

#C9AF92

accent

#9950D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #427BBD

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

Preview Lab → · Contrast checker → · Palette generator →