#4288C3#4288C3

#4288C3 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.8% C 0.114 H 246.6°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#4288C3
RGB	rgb(66, 136, 195)
HSL	hsl(207, 52%, 51%)
HSV	hsv(207, 66%, 76%)
CMYK	cmyk(66.2%, 30.3%, 0%, 23.5%)
CIE-LAB	lab(54.77, -3.25, -37.17)
CIE-LCH	lch(54.77, 37.31, 265.00°)
OKLab	oklab(60.8% -0.0455 -0.105)
OKLCH	oklch(60.8% 0.114 246.6)
XYZ	xyz(20.8976, 22.7046, 54.9003)
Luminance	0.2271 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4288C3 #C37D42

analogous

#42C3BD #4288C3 #4247C3

triadic

#4288C3 #C34288 #88C342

tetradic

#4288C3 #BD42C3 #C37D42 #47C342

square

#4288C3 #BD42C3 #C37D42 #47C342

split-complementary

#4288C3 #C34247 #C3BD42

monochromatic

#214869 #306898 #4288C3 #70A5D2 #9FC2E0

Accessibility & contrast

On white

3.79

#4288C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#4288C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4288C3

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4288C3	#FFFFFF	#000000	##000000
##4288C3	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E8AC6

Deuteranopia (green-blind)

#5C7DC2

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4288c3;
/* rgb */ color: rgb(66, 136, 195);
/* oklch */ color: oklch(60.8% 0.114 246.6);

Tailwind

colors: {
  custom: {
    50: '#84aad5',
    500: '#4288c3',
    950: '#000000',
  },
}

SCSS

$custom: #4288c3;
$custom-light: #84aad5;
$custom-dark: #000000;

JSON

{
  "hex": "#4288c3",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 195
  },
  "hsl": {
    "h": 207.442,
    "s": 51.807,
    "l": 51.176
  },
  "oklch": {
    "l": 0.60799,
    "c": 0.11443,
    "h": 246.6
  },
  "luminance": 0.22707
}

Semantic roles & 50–950 ramp

primary

#4288C3

secondary

#CDAE94

accent

#8E4DDB

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #4288C3

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

Preview Lab → · Contrast checker → · Palette generator →