#289AB7#289AB7

#289AB7 is a light, moderate cyan. Relative luminance 0.270; OKLCH L 63.8% C 0.105 H 219.4°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#289AB7
RGB	rgb(40, 154, 183)
HSL	hsl(192, 64%, 44%)
HSV	hsv(192, 78%, 72%)
CMYK	cmyk(78.1%, 15.8%, 0%, 28.2%)
CIE-LAB	lab(58.95, -20.93, -23.92)
CIE-LCH	lch(58.95, 31.79, 228.81°)
OKLab	oklab(63.77% -0.0814 -0.0669)
OKLCH	oklch(63.77% 0.105 219.4)
XYZ	xyz(20.9743, 26.9786, 48.8925)
Luminance	0.2698 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289AB7 #B74528

analogous

#28B78C #289AB7 #2852B7

triadic

#289AB7 #B7289A #9AB728

tetradic

#289AB7 #8C28B7 #B74528 #52B728

square

#289AB7 #8C28B7 #B74528 #52B728

split-complementary

#289AB7 #B72852 #B78C28

monochromatic

#124553 #1D7085 #289AB7 #46B9D6 #78CCE1

Accessibility & contrast

On white

3.28

#289AB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#289AB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289AB7

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289AB7	#FFFFFF	#000000	##000000
##289AB7	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8896B9

Deuteranopia (green-blind)

#7588B7

Tritanopia (blue-blind)

#00A4A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #289ab7;
/* rgb */ color: rgb(40, 154, 183);
/* oklch */ color: oklch(63.8% 0.105 219.4);

Tailwind

colors: {
  custom: {
    50: '#79b8cc',
    500: '#289ab7',
    950: '#000000',
  },
}

SCSS

$custom: #289ab7;
$custom-light: #79b8cc;
$custom-dark: #000000;

JSON

{
  "hex": "#289ab7",
  "rgb": {
    "r": 40,
    "g": 154,
    "b": 183
  },
  "hsl": {
    "h": 192.168,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.63768,
    "c": 0.10534,
    "h": 219.4
  },
  "luminance": 0.26981
}

Semantic roles & 50–950 ramp

primary

#289AB7

secondary

#C98372

accent

#6241E7

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289AB7

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

Preview Lab → · Contrast checker → · Palette generator →