#289AB9#289AB9

#289AB9 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 63.9% C 0.107 H 220.9°. Best body text is #000000 at 6.41:1 contrast (WCAG AA passes).

Color values

HEX#289AB9
RGBrgb(40, 154, 185)
HSLhsl(193, 64%, 44%)
HSVhsv(193, 78%, 73%)
CMYKcmyk(78.4%, 16.8%, 0%, 27.5%)
CIE-LABlab(59.03, -20.26, -24.93)
CIE-LCHlch(59.03, 32.13, 230.90°)
OKLaboklab(63.86% -0.0806 -0.0698)
OKLCHoklch(63.86% 0.107 220.9)
XYZxyz(21.1839, 27.0625, 49.9966)
Luminance0.2707 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#289AB9 #B94728
analogous
#28B990 #289AB9 #2851B9
triadic
#289AB9 #B9289A #9AB928
tetradic
#289AB9 #9028B9 #B94728 #51B928
square
#289AB9 #9028B9 #B94728 #51B928
split-complementary
#289AB9 #B92851 #B99028
monochromatic
#124654 #1D7087 #289AB9 #47B8D7 #79CCE2

Accessibility & contrast

On white

3.27
#289AB9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.41
#289AB9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289AB9
6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##289AB9#FFFFFF#000000##000000
##289AB91.003.276.416.41
#FFFFFF3.271.0021.0021.00
#0000006.4121.001.001.00
##0000006.4121.001.001.00

Color blindness preview

Protanopia (red-blind)
#8796BB
Deuteranopia (green-blind)
#7488B9
Tritanopia (blue-blind)
#00A4A4
Achromatopsia (no color)
#8E8E8E

Design tokens & code

CSS
--color: #289ab9;
/* rgb */ color: rgb(40, 154, 185);
/* oklch */ color: oklch(63.9% 0.107 220.9);
Tailwind
colors: {
  custom: {
    50: '#7ab8ce',
    500: '#289ab9',
    950: '#000000',
  },
}
SCSS
$custom: #289ab9;
$custom-light: #7ab8ce;
$custom-dark: #000000;
JSON
{
  "hex": "#289ab9",
  "rgb": {
    "r": 40,
    "g": 154,
    "b": 185
  },
  "hsl": {
    "h": 192.828,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.63856,
    "c": 0.1066,
    "h": 220.9
  },
  "luminance": 0.27065
}

Semantic roles & 50–950 ramp

primary
#289AB9
secondary
#CA8573
accent
#6440E7
background
#F8FBFC
surface
#EFF6F9
border
#CAD0D2
text
#0B1113
muted
#7C8082

Preview Lab

Preview with #289AB9

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

Preview Lab → · Contrast checker → · Palette generator →

#289AB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva