#4288AA#4288AA

#4288AA is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.6% C 0.087 H 231.9°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4288AA
RGB	rgb(66, 136, 170)
HSL	hsl(200, 44%, 46%)
HSV	hsv(200, 61%, 67%)
CMYK	cmyk(61.2%, 20%, 0%, 33.3%)
CIE-LAB	lab(53.67, -11.57, -24.58)
CIE-LCH	lch(53.67, 27.17, 244.79°)
OKLab	oklab(59.57% -0.0539 -0.0687)
OKLCH	oklch(59.57% 0.087 231.9)
XYZ	xyz(18.3038, 21.6671, 41.2400)
Luminance	0.2167 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4288AA #AA6442

analogous

#42AA98 #4288AA #4254AA

triadic

#4288AA #AA4288 #88AA42

tetradic

#4288AA #9842AA #AA6442 #54AA42

square

#4288AA #9842AA #AA6442 #54AA42

split-complementary

#4288AA #AA4254 #AA9842

monochromatic

#204152 #31657E #4288AA #66A5C3 #92BFD5

Accessibility & contrast

On white

3.94

#4288AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4288AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4288AA

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4288AA	#FFFFFF	#000000	##000000
##4288AA	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7786AC

Deuteranopia (green-blind)

#697CAA

Tritanopia (blue-blind)

#009193

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4288aa;
/* rgb */ color: rgb(66, 136, 170);
/* oklch */ color: oklch(59.6% 0.087 231.9);

Tailwind

colors: {
  custom: {
    50: '#80aac3',
    500: '#4288aa',
    950: '#000000',
  },
}

SCSS

$custom: #4288aa;
$custom-light: #80aac3;
$custom-dark: #000000;

JSON

{
  "hex": "#4288aa",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 170
  },
  "hsl": {
    "h": 199.615,
    "s": 44.068,
    "l": 46.275
  },
  "oklch": {
    "l": 0.59571,
    "c": 0.08729,
    "h": 231.9
  },
  "luminance": 0.21669
}

Semantic roles & 50–950 ramp

primary

#4288AA

secondary

#C09A88

accent

#7E54D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #4288AA

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

Preview Lab → · Contrast checker → · Palette generator →