#4280B2#4280B2

#4280B2 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.1% C 0.100 H 245.1°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#4280B2
RGB	rgb(66, 128, 178)
HSL	hsl(207, 46%, 48%)
HSV	hsv(207, 63%, 70%)
CMYK	cmyk(62.9%, 28.1%, 0%, 30.2%)
CIE-LAB	lab(51.62, -4.34, -32.37)
CIE-LCH	lch(51.62, 32.66, 262.36°)
OKLab	oklab(58.06% -0.0423 -0.0911)
OKLCH	oklch(58.06% 0.1 245.1)
XYZ	xyz(17.9988, 19.8092, 44.9859)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4280B2 #B27442

analogous

#42B2AC #4280B2 #4248B2

triadic

#4280B2 #B24280 #80B242

tetradic

#4280B2 #AC42B2 #B27442 #48B242

square

#4280B2 #AC42B2 #B27442 #48B242

split-complementary

#4280B2 #B24248 #B2AC42

monochromatic

#214059 #316085 #4280B2 #6A9EC8 #96BBD8

Accessibility & contrast

On white

4.23

#4280B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#4280B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4280B2

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4280B2	#FFFFFF	#000000	##000000
##4280B2	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A81B4

Deuteranopia (green-blind)

#5B76B1

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4280b2;
/* rgb */ color: rgb(66, 128, 178);
/* oklch */ color: oklch(58.1% 0.100 245.1);

Tailwind

colors: {
  custom: {
    50: '#81a4c9',
    500: '#4280b2',
    950: '#000000',
  },
}

SCSS

$custom: #4280b2;
$custom-light: #81a4c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4280b2",
  "rgb": {
    "r": 66,
    "g": 128,
    "b": 178
  },
  "hsl": {
    "h": 206.786,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.58059,
    "c": 0.10048,
    "h": 245.1
  },
  "luminance": 0.19811
}

Semantic roles & 50–950 ramp

primary

#4280B2

secondary

#C4A58C

accent

#8D52D6

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #4280B2

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

Preview Lab → · Contrast checker → · Palette generator →