#4282CB#4282CB

#4282CB is a mid, vivid cyan. Relative luminance 0.214; OKLCH L 59.9% C 0.130 H 253.4°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#4282CB
RGB	rgb(66, 130, 203)
HSL	hsl(212, 57%, 53%)
HSV	hsv(212, 67%, 80%)
CMYK	cmyk(67.5%, 36%, 0%, 20.4%)
CIE-LAB	lab(53.42, 3.07, -43.84)
CIE-LCH	lch(53.42, 43.95, 274.01°)
OKLab	oklab(59.87% -0.0372 -0.1245)
OKLCH	oklch(59.87% 0.13 253.4)
XYZ	xyz(21.0049, 21.4331, 59.5184)
Luminance	0.2144 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4282CB #CB8B42

analogous

#42C6CB #4282CB #4742CB

triadic

#4282CB #CB4282 #82CB42

tetradic

#4282CB #CB42C6 #CB8B42 #42CB47

square

#4282CB #CB42C6 #CB8B42 #42CB47

split-complementary

#4282CB #CB4742 #C6CB42

monochromatic

#204773 #2D64A3 #4282CB #72A2D8 #A2C1E5

Accessibility & contrast

On white

3.97

#4282CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#4282CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4282CB

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4282CB	#FFFFFF	#000000	##000000
##4282CB	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6287CE

Deuteranopia (green-blind)

#4E7ACA

Tritanopia (blue-blind)

#00939D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4282cb;
/* rgb */ color: rgb(66, 130, 203);
/* oklch */ color: oklch(59.9% 0.130 253.4);

Tailwind

colors: {
  custom: {
    50: '#85a5db',
    500: '#4282cb',
    950: '#000000',
  },
}

SCSS

$custom: #4282cb;
$custom-light: #85a5db;
$custom-dark: #000000;

JSON

{
  "hex": "#4282cb",
  "rgb": {
    "r": 66,
    "g": 130,
    "b": 203
  },
  "hsl": {
    "h": 211.971,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.59871,
    "c": 0.12994,
    "h": 253.4
  },
  "luminance": 0.21435
}

Semantic roles & 50–950 ramp

primary

#4282CB

secondary

#D2B697

accent

#9948E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4282CB

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

Preview Lab → · Contrast checker → · Palette generator →