#289DBB#289DBB

#289DBB is a light, moderate cyan. Relative luminance 0.282; OKLCH L 64.7% C 0.107 H 219.7°. Best body text is #000000 at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#289DBB
RGB	rgb(40, 157, 187)
HSL	hsl(192, 65%, 45%)
HSV	hsv(192, 79%, 73%)
CMYK	cmyk(78.6%, 16%, 0%, 26.7%)
CIE-LAB	lab(60.02, -21.17, -24.53)
CIE-LCH	lch(60.02, 32.41, 229.21°)
OKLab	oklab(64.68% -0.0827 -0.0686)
OKLCH	oklch(64.68% 0.107 219.7)
XYZ	xyz(21.8979, 28.1502, 51.2835)
Luminance	0.2815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289DBB #BB4628

analogous

#28BB90 #289DBB #2853BB

triadic

#289DBB #BB289D #9DBB28

tetradic

#289DBB #9028BB #BB4628 #53BB28

square

#289DBB #9028BB #BB4628 #53BB28

split-complementary

#289DBB #BB2853 #BB9028

monochromatic

#124856 #1D7389 #289DBB #48BBD8 #7BCDE3

Accessibility & contrast

On white

3.17

#289DBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.63

#289DBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289DBB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289DBB	#FFFFFF	#000000	##000000
##289DBB	1.00	3.17	6.63	6.63
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.63	21.00	1.00	1.00
##000000	6.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BD

Deuteranopia (green-blind)

#778BBB

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #289dbb;
/* rgb */ color: rgb(40, 157, 187);
/* oklch */ color: oklch(64.7% 0.107 219.7);

Tailwind

colors: {
  custom: {
    50: '#7abacf',
    500: '#289dbb',
    950: '#000000',
  },
}

SCSS

$custom: #289dbb;
$custom-light: #7abacf;
$custom-dark: #000000;

JSON

{
  "hex": "#289dbb",
  "rgb": {
    "r": 40,
    "g": 157,
    "b": 187
  },
  "hsl": {
    "h": 192.245,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.64679,
    "c": 0.10747,
    "h": 219.7
  },
  "luminance": 0.28153
}

Semantic roles & 50–950 ramp

primary

#289DBB

secondary

#CB8674

accent

#6240E8

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289DBB

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

Preview Lab → · Contrast checker → · Palette generator →