#427FB2#427FB2

#427FB2 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.8% C 0.101 H 246.0°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#427FB2
RGB	rgb(66, 127, 178)
HSL	hsl(207, 46%, 48%)
HSV	hsv(207, 63%, 70%)
CMYK	cmyk(62.9%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(51.32, -3.76, -32.84)
CIE-LCH	lch(51.32, 33.05, 263.47°)
OKLab	oklab(57.83% -0.0412 -0.0925)
OKLCH	oklch(57.83% 0.101 246)
XYZ	xyz(17.8690, 19.5496, 44.9426)
Luminance	0.1955 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FB2 #B27542

analogous

#42B2AD #427FB2 #4247B2

triadic

#427FB2 #B2427F #7FB242

tetradic

#427FB2 #AD42B2 #B27542 #47B242

square

#427FB2 #AD42B2 #B27542 #47B242

split-complementary

#427FB2 #B24247 #B2AD42

monochromatic

#213F59 #315F85 #427FB2 #6A9DC8 #96BAD8

Accessibility & contrast

On white

4.28

#427FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#427FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FB2

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FB2	#FFFFFF	#000000	##000000
##427FB2	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B4

Deuteranopia (green-blind)

#5A75B1

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427fb2;
/* rgb */ color: rgb(66, 127, 178);
/* oklch */ color: oklch(57.8% 0.101 246.0);

Tailwind

colors: {
  custom: {
    50: '#81a3c9',
    500: '#427fb2',
    950: '#000000',
  },
}

SCSS

$custom: #427fb2;
$custom-light: #81a3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#427fb2",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 207.321,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57825,
    "c": 0.10126,
    "h": 246
  },
  "luminance": 0.19551
}

Semantic roles & 50–950 ramp

primary

#427FB2

secondary

#C4A58C

accent

#8E52D6

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #427FB2

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

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