#427CB6#427CB6

#427CB6 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.109 H 250.3°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#427CB6
RGB	rgb(66, 124, 182)
HSL	hsl(210, 47%, 49%)
HSV	hsv(210, 64%, 71%)
CMYK	cmyk(63.7%, 31.9%, 0%, 28.6%)
CIE-LAB	lab(50.63, -0.62, -36.23)
CIE-LCH	lch(50.63, 36.24, 269.02°)
OKLab	oklab(57.34% -0.0367 -0.1024)
OKLCH	oklch(57.34% 0.109 250.3)
XYZ	xyz(17.8948, 18.9492, 46.9614)
Luminance	0.1895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CB6 #B67C42

analogous

#42B6B6 #427CB6 #4242B6

triadic

#427CB6 #B6427C #7CB642

tetradic

#427CB6 #B642B6 #B67C42 #42B642

square

#427CB6 #B642B6 #B67C42 #42B642

split-complementary

#427CB6 #B64242 #B6B642

monochromatic

#213F5C #325D89 #427CB6 #6C9BCA #99B9DA

Accessibility & contrast

On white

4.38

#427CB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#427CB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CB6

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CB6	#FFFFFF	#000000	##000000
##427CB6	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637FB8

Deuteranopia (green-blind)

#5373B5

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427cb6;
/* rgb */ color: rgb(66, 124, 182);
/* oklch */ color: oklch(57.3% 0.109 250.3);

Tailwind

colors: {
  custom: {
    50: '#81a1cc',
    500: '#427cb6',
    950: '#000000',
  },
}

SCSS

$custom: #427cb6;
$custom-light: #81a1cc;
$custom-dark: #000000;

JSON

{
  "hex": "#427cb6",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 182
  },
  "hsl": {
    "h": 210,
    "s": 46.774,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57339,
    "c": 0.10879,
    "h": 250.3
  },
  "luminance": 0.18951
}

Semantic roles & 50–950 ramp

primary

#427CB6

secondary

#C6AA8E

accent

#9451D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #427CB6

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

Preview Lab → · Contrast checker → · Palette generator →