#288699#288699

#288699 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 57.5% C 0.089 H 214.3°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#288699
RGB	rgb(40, 134, 153)
HSL	hsl(190, 59%, 38%)
HSV	hsv(190, 74%, 60%)
CMYK	cmyk(73.9%, 12.4%, 0%, 40%)
CIE-LAB	lab(51.61, -20.34, -17.98)
CIE-LCH	lch(51.61, 27.15, 221.49°)
OKLab	oklab(57.48% -0.0735 -0.0501)
OKLCH	oklch(57.48% 0.089 214.3)
XYZ	xyz(15.1475, 19.7994, 33.1542)
Luminance	0.1980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288699 #993B28

analogous

#289973 #288699 #284E99

triadic

#288699 #992886 #869928

tetradic

#288699 #732899 #993B28 #4E9928

square

#288699 #732899 #993B28 #4E9928

split-complementary

#288699 #99284E #997328

monochromatic

#0F3138 #1B5C68 #288699 #35B0CA #65C4D7

Accessibility & contrast

On white

4.23

#288699 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#288699 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288699

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288699	#FFFFFF	#000000	##000000
##288699	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78829A

Deuteranopia (green-blind)

#697699

Tritanopia (blue-blind)

#008D8C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #288699;
/* rgb */ color: rgb(40, 134, 153);
/* oklch */ color: oklch(57.5% 0.089 214.3);

Tailwind

colors: {
  custom: {
    50: '#73a9b7',
    500: '#288699',
    950: '#000000',
  },
}

SCSS

$custom: #288699;
$custom-light: #73a9b7;
$custom-dark: #000000;

JSON

{
  "hex": "#288699",
  "rgb": {
    "r": 40,
    "g": 134,
    "b": 153
  },
  "hsl": {
    "h": 190.088,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.5748,
    "c": 0.08898,
    "h": 214.3
  },
  "luminance": 0.19801
}

Semantic roles & 50–950 ramp

primary

#288699

secondary

#BD7060

accent

#6046E2

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288699

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

Preview Lab → · Contrast checker → · Palette generator →