#289DB7#289DB7

#289DB7 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.5% C 0.105 H 216.7°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#289DB7
RGB	rgb(40, 157, 183)
HSL	hsl(191, 64%, 44%)
HSV	hsv(191, 78%, 72%)
CMYK	cmyk(78.1%, 14.2%, 0%, 28.2%)
CIE-LAB	lab(59.87, -22.50, -22.51)
CIE-LCH	lch(59.87, 31.83, 225.02°)
OKLab	oklab(64.51% -0.0843 -0.0629)
OKLCH	oklch(64.51% 0.105 216.7)
XYZ	xyz(21.4756, 27.9813, 49.0596)
Luminance	0.2798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289DB7 #B74228

analogous

#28B789 #289DB7 #2855B7

triadic

#289DB7 #B7289D #9DB728

tetradic

#289DB7 #8928B7 #B74228 #55B728

square

#289DB7 #8928B7 #B74228 #55B728

split-complementary

#289DB7 #B72855 #B78928

monochromatic

#124753 #1D7285 #289DB7 #46BCD6 #78CEE1

Accessibility & contrast

On white

3.18

#289DB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#289DB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289DB7

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289DB7	#FFFFFF	#000000	##000000
##289DB7	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C98B8

Deuteranopia (green-blind)

#798AB7

Tritanopia (blue-blind)

#00A6A5

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #289db7;
/* rgb */ color: rgb(40, 157, 183);
/* oklch */ color: oklch(64.5% 0.105 216.7);

Tailwind

colors: {
  custom: {
    50: '#7abacc',
    500: '#289db7',
    950: '#000000',
  },
}

SCSS

$custom: #289db7;
$custom-light: #7abacc;
$custom-dark: #000000;

JSON

{
  "hex": "#289db7",
  "rgb": {
    "r": 40,
    "g": 157,
    "b": 183
  },
  "hsl": {
    "h": 190.909,
    "s": 64.126,
    "l": 43.725
  },
  "oklch": {
    "l": 0.64506,
    "c": 0.10516,
    "h": 216.7
  },
  "luminance": 0.27984
}

Semantic roles & 50–950 ramp

primary

#289DB7

secondary

#C98272

accent

#5F41E7

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289DB7

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

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