#4287C5#4287C5

#4287C5 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.7% C 0.118 H 248.1°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#4287C5
RGB	rgb(66, 135, 197)
HSL	hsl(208, 53%, 52%)
HSV	hsv(208, 66%, 77%)
CMYK	cmyk(66.5%, 31.5%, 0%, 22.7%)
CIE-LAB	lab(54.57, -1.98, -38.62)
CIE-LCH	lch(54.57, 38.67, 267.07°)
OKLab	oklab(60.68% -0.0438 -0.1092)
OKLCH	oklch(60.68% 0.118 248.1)
XYZ	xyz(20.9850, 22.5153, 56.0524)
Luminance	0.2252 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287C5 #C58042

analogous

#42C5C2 #4287C5 #4246C5

triadic

#4287C5 #C54287 #87C542

tetradic

#4287C5 #C242C5 #C58042 #46C542

square

#4287C5 #C242C5 #C58042 #46C542

split-complementary

#4287C5 #C54246 #C5C242

monochromatic

#21486C #2F689A #4287C5 #71A5D3 #A0C2E2

Accessibility & contrast

On white

3.82

#4287C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#4287C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287C5

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287C5	#FFFFFF	#000000	##000000
##4287C5	1.00	3.82	5.50	5.50
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C89C8

Deuteranopia (green-blind)

#5A7DC4

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4287c5;
/* rgb */ color: rgb(66, 135, 197);
/* oklch */ color: oklch(60.7% 0.118 248.1);

Tailwind

colors: {
  custom: {
    50: '#84a9d7',
    500: '#4287c5',
    950: '#000000',
  },
}

SCSS

$custom: #4287c5;
$custom-light: #84a9d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4287c5",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 197
  },
  "hsl": {
    "h": 208.397,
    "s": 53.036,
    "l": 51.569
  },
  "oklch": {
    "l": 0.60675,
    "c": 0.1177,
    "h": 248.1
  },
  "luminance": 0.22517
}

Semantic roles & 50–950 ramp

primary

#4287C5

secondary

#CEB095

accent

#904BDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #4287C5

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

Preview Lab → · Contrast checker → · Palette generator →