#289CB7#289CB7

#289CB7 is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.3% C 0.105 H 217.6°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#289CB7
RGB	rgb(40, 156, 183)
HSL	hsl(191, 64%, 44%)
HSV	hsv(191, 78%, 72%)
CMYK	cmyk(78.1%, 14.8%, 0%, 28.2%)
CIE-LAB	lab(59.57, -21.98, -22.98)
CIE-LCH	lch(59.57, 31.80, 226.28°)
OKLab	oklab(64.26% -0.0833 -0.0642)
OKLCH	oklch(64.26% 0.105 217.6)
XYZ	xyz(21.3071, 27.6443, 49.0035)
Luminance	0.2765 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289CB7 #B74328

analogous

#28B78A #289CB7 #2854B7

triadic

#289CB7 #B7289C #9CB728

tetradic

#289CB7 #8A28B7 #B74328 #54B728

square

#289CB7 #8A28B7 #B74328 #54B728

split-complementary

#289CB7 #B72854 #B78A28

monochromatic

#124653 #1D7185 #289CB7 #46BBD6 #78CEE1

Accessibility & contrast

On white

3.22

#289CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#289CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289CB7

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289CB7	#FFFFFF	#000000	##000000
##289CB7	1.00	3.22	6.53	6.53
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A97B8

Deuteranopia (green-blind)

#7789B7

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #289cb7;
/* rgb */ color: rgb(40, 156, 183);
/* oklch */ color: oklch(64.3% 0.105 217.6);

Tailwind

colors: {
  custom: {
    50: '#7ab9cc',
    500: '#289cb7',
    950: '#000000',
  },
}

SCSS

$custom: #289cb7;
$custom-light: #7ab9cc;
$custom-dark: #000000;

JSON

{
  "hex": "#289cb7",
  "rgb": {
    "r": 40,
    "g": 156,
    "b": 183
  },
  "hsl": {
    "h": 191.329,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.6426,
    "c": 0.1052,
    "h": 217.6
  },
  "luminance": 0.27647
}

Semantic roles & 50–950 ramp

primary

#289CB7

secondary

#C98272

accent

#6041E7

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289CB7

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

Preview Lab → · Contrast checker → · Palette generator →