#289EB9#289EB9

#289EB9 is a light, moderate cyan. Relative luminance 0.284; OKLCH L 64.8% C 0.106 H 217.3°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#289EB9
RGB	rgb(40, 158, 185)
HSL	hsl(191, 64%, 44%)
HSV	hsv(191, 78%, 73%)
CMYK	cmyk(78.4%, 14.6%, 0%, 27.5%)
CIE-LAB	lab(60.25, -22.36, -23.06)
CIE-LCH	lch(60.25, 32.12, 225.88°)
OKLab	oklab(64.84% -0.0844 -0.0644)
OKLCH	oklch(64.84% 0.106 217.3)
XYZ	xyz(21.8552, 28.4049, 50.2204)
Luminance	0.2841 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289EB9 #B94328

analogous

#28B98B #289EB9 #2856B9

triadic

#289EB9 #B9289E #9EB928

tetradic

#289EB9 #8B28B9 #B94328 #56B928

square

#289EB9 #8B28B9 #B94328 #56B928

split-complementary

#289EB9 #B92856 #B98B28

monochromatic

#124854 #1D7387 #289EB9 #47BCD7 #79CFE2

Accessibility & contrast

On white

3.14

#289EB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#289EB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289EB9

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289EB9	#FFFFFF	#000000	##000000
##289EB9	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C99BA

Deuteranopia (green-blind)

#798BB9

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #289eb9;
/* rgb */ color: rgb(40, 158, 185);
/* oklch */ color: oklch(64.8% 0.106 217.3);

Tailwind

colors: {
  custom: {
    50: '#7abbce',
    500: '#289eb9',
    950: '#000000',
  },
}

SCSS

$custom: #289eb9;
$custom-light: #7abbce;
$custom-dark: #000000;

JSON

{
  "hex": "#289eb9",
  "rgb": {
    "r": 40,
    "g": 158,
    "b": 185
  },
  "hsl": {
    "h": 191.172,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.64838,
    "c": 0.10622,
    "h": 217.3
  },
  "luminance": 0.28408
}

Semantic roles & 50–950 ramp

primary

#289EB9

secondary

#CA8373

accent

#5F40E7

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289EB9

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

Preview Lab → · Contrast checker → · Palette generator →