#289BB7#289BB7

#289BB7 is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.0% C 0.105 H 218.5°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#289BB7
RGB	rgb(40, 155, 183)
HSL	hsl(192, 64%, 44%)
HSV	hsv(192, 78%, 72%)
CMYK	cmyk(78.1%, 15.3%, 0%, 28.2%)
CIE-LAB	lab(59.26, -21.46, -23.45)
CIE-LCH	lch(59.26, 31.79, 227.54°)
OKLab	oklab(64.01% -0.0823 -0.0656)
OKLCH	oklch(64.01% 0.105 218.5)
XYZ	xyz(21.1400, 27.3101, 48.9478)
Luminance	0.2731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289BB7 #B74428

analogous

#28B78B #289BB7 #2853B7

triadic

#289BB7 #B7289B #9BB728

tetradic

#289BB7 #8B28B7 #B74428 #53B728

square

#289BB7 #8B28B7 #B74428 #53B728

split-complementary

#289BB7 #B72853 #B78B28

monochromatic

#124653 #1D7085 #289BB7 #46BAD6 #78CDE1

Accessibility & contrast

On white

3.25

#289BB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#289BB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289BB7

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289BB7	#FFFFFF	#000000	##000000
##289BB7	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8996B9

Deuteranopia (green-blind)

#7689B7

Tritanopia (blue-blind)

#00A4A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #289bb7;
/* rgb */ color: rgb(40, 155, 183);
/* oklch */ color: oklch(64.0% 0.105 218.5);

Tailwind

colors: {
  custom: {
    50: '#79b8cc',
    500: '#289bb7',
    950: '#000000',
  },
}

SCSS

$custom: #289bb7;
$custom-light: #79b8cc;
$custom-dark: #000000;

JSON

{
  "hex": "#289bb7",
  "rgb": {
    "r": 40,
    "g": 155,
    "b": 183
  },
  "hsl": {
    "h": 191.748,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.64014,
    "c": 0.10526,
    "h": 218.5
  },
  "luminance": 0.27313
}

Semantic roles & 50–950 ramp

primary

#289BB7

secondary

#C98372

accent

#6141E7

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289BB7

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

Preview Lab → · Contrast checker → · Palette generator →