#4288AC#4288AC

#4288AC is a mid, moderate cyan. Relative luminance 0.217; OKLCH L 59.7% C 0.089 H 233.4°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#4288AC
RGB	rgb(66, 136, 172)
HSL	hsl(200, 45%, 47%)
HSV	hsv(200, 62%, 67%)
CMYK	cmyk(61.6%, 20.9%, 0%, 32.5%)
CIE-LAB	lab(53.75, -10.92, -25.60)
CIE-LCH	lch(53.75, 27.84, 246.89°)
OKLab	oklab(59.66% -0.0531 -0.0716)
OKLCH	oklch(59.66% 0.089 233.4)
XYZ	xyz(18.4945, 21.7433, 42.2439)
Luminance	0.2175 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4288AC #AC6642

analogous

#42AC9B #4288AC #4253AC

triadic

#4288AC #AC4288 #88AC42

tetradic

#4288AC #9B42AC #AC6642 #53AC42

square

#4288AC #9B42AC #AC6642 #53AC42

split-complementary

#4288AC #AC4253 #AC9B42

monochromatic

#204254 #316580 #4288AC #67A5C5 #93BFD6

Accessibility & contrast

On white

3.93

#4288AC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#4288AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4288AC

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4288AC	#FFFFFF	#000000	##000000
##4288AC	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7787AE

Deuteranopia (green-blind)

#687CAB

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4288ac;
/* rgb */ color: rgb(66, 136, 172);
/* oklch */ color: oklch(59.7% 0.089 233.4);

Tailwind

colors: {
  custom: {
    50: '#80aac4',
    500: '#4288ac',
    950: '#000000',
  },
}

SCSS

$custom: #4288ac;
$custom-light: #80aac4;
$custom-dark: #000000;

JSON

{
  "hex": "#4288ac",
  "rgb": {
    "r": 66,
    "g": 136,
    "b": 172
  },
  "hsl": {
    "h": 200.377,
    "s": 44.538,
    "l": 46.667
  },
  "oklch": {
    "l": 0.59663,
    "c": 0.08917,
    "h": 233.4
  },
  "luminance": 0.21745
}

Semantic roles & 50–950 ramp

primary

#4288AC

secondary

#C19C89

accent

#7F54D4

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #4288AC

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

Preview Lab → · Contrast checker → · Palette generator →