#4287D6#4287D6

#4287D6 is a mid, vivid cyan. Relative luminance 0.233; OKLCH L 61.6% C 0.139 H 253.6°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#4287D6
RGB	rgb(66, 135, 214)
HSL	hsl(212, 64%, 55%)
HSV	hsv(212, 69%, 84%)
CMYK	cmyk(69.2%, 36.9%, 0%, 16.1%)
CIE-LAB	lab(55.42, 3.93, -46.89)
CIE-LCH	lch(55.42, 47.05, 274.79°)
OKLab	oklab(61.62% -0.0393 -0.1334)
OKLCH	oklch(61.62% 0.139 253.6)
XYZ	xyz(23.0439, 23.3388, 66.8957)
Luminance	0.2334 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287D6 #D69142

analogous

#42D1D6 #4287D6 #4742D6

triadic

#4287D6 #D64287 #87D642

tetradic

#4287D6 #D642D1 #D69142 #42D647

square

#4287D6 #D642D1 #D69142 #42D647

split-complementary

#4287D6 #D64742 #D1D642

monochromatic

#1C4B82 #2769B4 #4287D6 #74A7E1 #A7C7EC

Accessibility & contrast

On white

3.70

#4287D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.67

#4287D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287D6

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287D6	#FFFFFF	#000000	##000000
##4287D6	1.00	3.70	5.67	5.67
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.67	21.00	1.00	1.00
##000000	5.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#638CD9

Deuteranopia (green-blind)

#4E7ED4

Tritanopia (blue-blind)

#0099A4

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4287d6;
/* rgb */ color: rgb(66, 135, 214);
/* oklch */ color: oklch(61.6% 0.139 253.6);

Tailwind

colors: {
  custom: {
    50: '#87a9e3',
    500: '#4287d6',
    950: '#000000',
  },
}

SCSS

$custom: #4287d6;
$custom-light: #87a9e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4287d6",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 214
  },
  "hsl": {
    "h": 212.027,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.61619,
    "c": 0.13903,
    "h": 253.6
  },
  "luminance": 0.23341
}

Semantic roles & 50–950 ramp

primary

#4287D6

secondary

#D9BC9B

accent

#9A40E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D0F15

muted

#7D7F83

Preview Lab

Preview with #4287D6

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

Preview Lab → · Contrast checker → · Palette generator →