#288FAA#288FAA

#288FAA is a mid, moderate cyan. Relative luminance 0.230; OKLCH L 60.5% C 0.098 H 219.7°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#288FAA
RGB	rgb(40, 143, 170)
HSL	hsl(192, 62%, 41%)
HSV	hsv(192, 76%, 67%)
CMYK	cmyk(76.5%, 15.9%, 0%, 33.3%)
CIE-LAB	lab(55.07, -19.46, -22.49)
CIE-LCH	lch(55.07, 29.75, 229.13°)
OKLab	oklab(60.48% -0.0757 -0.0629)
OKLCH	oklch(60.48% 0.098 219.7)
XYZ	xyz(17.9502, 22.9962, 41.5151)
Luminance	0.2300 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288FAA #AA4328

analogous

#28AA84 #288FAA #284EAA

triadic

#288FAA #AA288F #8FAA28

tetradic

#288FAA #8428AA #AA4328 #4EAA28

square

#288FAA #8428AA #AA4328 #4EAA28

split-complementary

#288FAA #AA284E #AA8428

monochromatic

#113C47 #1C6578 #288FAA #3EB3D2 #6FC6DD

Accessibility & contrast

On white

3.75

#288FAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#288FAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288FAA

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288FAA	#FFFFFF	#000000	##000000
##288FAA	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E8BAB

Deuteranopia (green-blind)

#6D7EAA

Tritanopia (blue-blind)

#009898

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #288faa;
/* rgb */ color: rgb(40, 143, 170);
/* oklch */ color: oklch(60.5% 0.098 219.7);

Tailwind

colors: {
  custom: {
    50: '#76b0c3',
    500: '#288faa',
    950: '#000000',
  },
}

SCSS

$custom: #288faa;
$custom-light: #76b0c3;
$custom-dark: #000000;

JSON

{
  "hex": "#288faa",
  "rgb": {
    "r": 40,
    "g": 143,
    "b": 170
  },
  "hsl": {
    "h": 192.462,
    "s": 61.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.60478,
    "c": 0.09842,
    "h": 219.7
  },
  "luminance": 0.22998
}

Semantic roles & 50–950 ramp

primary

#288FAA

secondary

#C47D6A

accent

#6443E5

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #288FAA

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

Preview Lab → · Contrast checker → · Palette generator →