#289DB6#289DB6

#289DB6 is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.5% C 0.105 H 216.0°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#289DB6
RGB	rgb(40, 157, 182)
HSL	hsl(191, 64%, 44%)
HSV	hsv(191, 78%, 71%)
CMYK	cmyk(78%, 13.7%, 0%, 28.6%)
CIE-LAB	lab(59.83, -22.83, -22.01)
CIE-LCH	lch(59.83, 31.71, 223.95°)
OKLab	oklab(64.46% -0.0847 -0.0614)
OKLCH	oklch(64.46% 0.105 216)
XYZ	xyz(21.3719, 27.9398, 48.5134)
Luminance	0.2794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289DB6 #B64128

analogous

#28B688 #289DB6 #2856B6

triadic

#289DB6 #B6289D #9DB628

tetradic

#289DB6 #8828B6 #B64128 #56B628

square

#289DB6 #8828B6 #B64128 #56B628

split-complementary

#289DB6 #B62856 #B68828

monochromatic

#124652 #1D7284 #289DB6 #45BDD6 #77CFE1

Accessibility & contrast

On white

3.19

#289DB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#289DB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289DB6

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289DB6	#FFFFFF	#000000	##000000
##289DB6	1.00	3.19	6.59	6.59
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.59	21.00	1.00	1.00
##000000	6.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C98B7

Deuteranopia (green-blind)

#798AB6

Tritanopia (blue-blind)

#00A6A5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #289db6;
/* rgb */ color: rgb(40, 157, 182);
/* oklch */ color: oklch(64.5% 0.105 216.0);

Tailwind

colors: {
  custom: {
    50: '#79bacc',
    500: '#289db6',
    950: '#000000',
  },
}

SCSS

$custom: #289db6;
$custom-light: #79bacc;
$custom-dark: #000000;

JSON

{
  "hex": "#289db6",
  "rgb": {
    "r": 40,
    "g": 157,
    "b": 182
  },
  "hsl": {
    "h": 190.563,
    "s": 63.964,
    "l": 43.529
  },
  "oklch": {
    "l": 0.64464,
    "c": 0.10464,
    "h": 216
  },
  "luminance": 0.27942
}

Semantic roles & 50–950 ramp

primary

#289DB6

secondary

#C98071

accent

#5E41E7

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289DB6

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

Preview Lab → · Contrast checker → · Palette generator →