#288BAE#288BAE

#288BAE is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.7% C 0.102 H 226.6°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#288BAE
RGB	rgb(40, 139, 174)
HSL	hsl(196, 63%, 42%)
HSV	hsv(196, 77%, 68%)
CMYK	cmyk(77%, 20.1%, 0%, 31.8%)
CIE-LAB	lab(54.00, -15.94, -26.44)
CIE-LCH	lch(54.00, 30.87, 238.92°)
OKLab	oklab(59.67% -0.0702 -0.0742)
OKLCH	oklch(59.67% 0.102 226.6)
XYZ	xyz(17.7445, 21.9702, 43.3417)
Luminance	0.2197 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288BAE #AE4B28

analogous

#28AE8E #288BAE #2848AE

triadic

#288BAE #AE288B #8BAE28

tetradic

#288BAE #8E28AE #AE4B28 #48AE28

square

#288BAE #8E28AE #AE4B28 #48AE28

split-complementary

#288BAE #AE2848 #AE8E28

monochromatic

#113B4A #1D637C #288BAE #40ADD3 #72C2DF

Accessibility & contrast

On white

3.89

#288BAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#288BAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288BAE

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288BAE	#FFFFFF	#000000	##000000
##288BAE	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7888B0

Deuteranopia (green-blind)

#667BAE

Tritanopia (blue-blind)

#009597

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288bae;
/* rgb */ color: rgb(40, 139, 174);
/* oklch */ color: oklch(59.7% 0.102 226.6);

Tailwind

colors: {
  custom: {
    50: '#77adc6',
    500: '#288bae',
    950: '#000000',
  },
}

SCSS

$custom: #288bae;
$custom-light: #77adc6;
$custom-dark: #000000;

JSON

{
  "hex": "#288bae",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 174
  },
  "hsl": {
    "h": 195.672,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.5967,
    "c": 0.10214,
    "h": 226.6
  },
  "luminance": 0.21972
}

Semantic roles & 50–950 ramp

primary

#288BAE

secondary

#C6846C

accent

#6D42E6

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #288BAE

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

Preview Lab → · Contrast checker → · Palette generator →