#427CB9#427CB9

#427CB9 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.5% C 0.113 H 251.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#427CB9
RGB	rgb(66, 124, 185)
HSL	hsl(211, 47%, 49%)
HSV	hsv(211, 64%, 73%)
CMYK	cmyk(64.3%, 33%, 0%, 27.5%)
CIE-LAB	lab(50.77, 0.41, -37.73)
CIE-LCH	lch(50.77, 37.73, 270.63°)
OKLab	oklab(57.5% -0.0359 -0.1068)
OKLCH	oklch(57.5% 0.113 251.4)
XYZ	xyz(18.2082, 19.0746, 48.6117)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CB9 #B97F42

analogous

#42B8B9 #427CB9 #4442B9

triadic

#427CB9 #B9427C #7CB942

tetradic

#427CB9 #B942B8 #B97F42 #42B944

square

#427CB9 #B942B8 #B97F42 #42B944

split-complementary

#427CB9 #B94442 #B8B942

monochromatic

#22405F #325E8C #427CB9 #6D9BCB #9ABADB

Accessibility & contrast

On white

4.36

#427CB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#427CB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CB9

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CB9	#FFFFFF	#000000	##000000
##427CB9	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627FBC

Deuteranopia (green-blind)

#5174B8

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427cb9;
/* rgb */ color: rgb(66, 124, 185);
/* oklch */ color: oklch(57.5% 0.113 251.4);

Tailwind

colors: {
  custom: {
    50: '#82a1ce',
    500: '#427cb9',
    950: '#000000',
  },
}

SCSS

$custom: #427cb9;
$custom-light: #82a1ce;
$custom-dark: #000000;

JSON

{
  "hex": "#427cb9",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 185
  },
  "hsl": {
    "h": 210.756,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57502,
    "c": 0.11263,
    "h": 251.4
  },
  "luminance": 0.19076
}

Semantic roles & 50–950 ramp

primary

#427CB9

secondary

#C7AC90

accent

#9651D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #427CB9

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

Preview Lab → · Contrast checker → · Palette generator →