#427FBC#427FBC

#427FBC is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.4% C 0.114 H 250.4°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#427FBC
RGB	rgb(66, 127, 188)
HSL	hsl(210, 48%, 50%)
HSV	hsv(210, 65%, 74%)
CMYK	cmyk(64.9%, 32.4%, 0%, 26.3%)
CIE-LAB	lab(51.80, -0.35, -37.84)
CIE-LCH	lch(51.80, 37.84, 269.48°)
OKLab	oklab(58.35% -0.0382 -0.107)
OKLCH	oklch(58.35% 0.114 250.4)
XYZ	xyz(18.9099, 19.9660, 50.4245)
Luminance	0.1997 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427FBC #BC7F42

analogous

#42BCBC #427FBC #4242BC

triadic

#427FBC #BC427F #7FBC42

tetradic

#427FBC #BC42BC #BC7F42 #42BC42

square

#427FBC #BC42BC #BC7F42 #42BC42

split-complementary

#427FBC #BC4242 #BCBC42

monochromatic

#224261 #32608F #427FBC #6F9ECC #9CBCDC

Accessibility & contrast

On white

4.21

#427FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#427FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427FBC

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427FBC	#FFFFFF	#000000	##000000
##427FBC	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482BF

Deuteranopia (green-blind)

#5476BB

Tritanopia (blue-blind)

#008D95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #427fbc;
/* rgb */ color: rgb(66, 127, 188);
/* oklch */ color: oklch(58.4% 0.114 250.4);

Tailwind

colors: {
  custom: {
    50: '#82a3d0',
    500: '#427fbc',
    950: '#000000',
  },
}

SCSS

$custom: #427fbc;
$custom-light: #82a3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#427fbc",
  "rgb": {
    "r": 66,
    "g": 127,
    "b": 188
  },
  "hsl": {
    "h": 210,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.58354,
    "c": 0.11365,
    "h": 250.4
  },
  "luminance": 0.19968
}

Semantic roles & 50–950 ramp

primary

#427FBC

secondary

#C9AD91

accent

#9450D8

background

#F8FAFC

surface

#F0F3F9

border

#CBCDD2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #427FBC

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

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