#4288D6#4288D6

#4288D6 is a mid, vivid cyan. Relative luminance 0.236; OKLCH L 61.8% C 0.138 H 253.1°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#4288D6
RGB	rgb(66, 136, 214)
HSL	hsl(212, 64%, 55%)
HSV	hsv(212, 69%, 84%)
CMYK	cmyk(69.2%, 36.4%, 0%, 16.1%)
CIE-LAB	lab(55.70, 3.34, -46.44)
CIE-LCH	lch(55.70, 46.55, 274.11°)
OKLab	oklab(61.84% -0.0402 -0.132)
OKLCH	oklch(61.84% 0.138 253.1)
XYZ	xyz(23.1840, 23.6191, 66.9424)
Luminance	0.2362 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4288D6 #D69042

analogous

#42D2D6 #4288D6 #4642D6

triadic

#4288D6 #D64288 #88D642

tetradic

#4288D6 #D642D2 #D69042 #42D646

square

#4288D6 #D642D2 #D69042 #42D646

split-complementary

#4288D6 #D64642 #D2D642

monochromatic

#1C4C82 #276AB4 #4288D6 #74A8E1 #A7C7EC

Accessibility & contrast

On white

3.67

#4288D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#4288D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4288D6

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4288D6	#FFFFFF	#000000	##000000
##4288D6	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#658DD9

Deuteranopia (green-blind)

#4F7FD4

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4288d6;
/* rgb */ color: rgb(66, 136, 214);
/* oklch */ color: oklch(61.8% 0.138 253.1);

Tailwind

colors: {
  custom: {
    50: '#87aae3',
    500: '#4288d6',
    950: '#000000',
  },
}

SCSS

$custom: #4288d6;
$custom-light: #87aae3;
$custom-dark: #000000;

JSON

{
  "hex": "#4288d6",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 214
  },
  "hsl": {
    "h": 211.622,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.61842,
    "c": 0.13802,
    "h": 253.1
  },
  "luminance": 0.23622
}

Semantic roles & 50–950 ramp

primary

#4288D6

secondary

#D9BC9B

accent

#9840E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4288D6

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

Preview Lab → · Contrast checker → · Palette generator →