#289ABB#289ABB

#289ABB is a light, moderate cyan. Relative luminance 0.272; OKLCH L 63.9% C 0.108 H 222.3°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#289ABB
RGB	rgb(40, 154, 187)
HSL	hsl(193, 65%, 45%)
HSV	hsv(193, 79%, 73%)
CMYK	cmyk(78.6%, 17.6%, 0%, 26.7%)
CIE-LAB	lab(59.11, -19.59, -25.94)
CIE-LCH	lch(59.11, 32.51, 232.94°)
OKLab	oklab(63.94% -0.0798 -0.0727)
OKLCH	oklch(63.94% 0.108 222.3)
XYZ	xyz(21.3966, 27.1475, 51.1164)
Luminance	0.2715 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289ABB #BB4928

analogous

#28BB92 #289ABB #2851BB

triadic

#289ABB #BB289A #9ABB28

tetradic

#289ABB #9228BB #BB4928 #51BB28

square

#289ABB #9228BB #BB4928 #51BB28

split-complementary

#289ABB #BB2851 #BB9228

monochromatic

#124756 #1D7089 #289ABB #48B8D8 #7BCBE3

Accessibility & contrast

On white

3.27

#289ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#289ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289ABB

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289ABB	#FFFFFF	#000000	##000000
##289ABB	1.00	3.27	6.43	6.43
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8796BD

Deuteranopia (green-blind)

#7388BB

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #289abb;
/* rgb */ color: rgb(40, 154, 187);
/* oklch */ color: oklch(63.9% 0.108 222.3);

Tailwind

colors: {
  custom: {
    50: '#7ab8cf',
    500: '#289abb',
    950: '#000000',
  },
}

SCSS

$custom: #289abb;
$custom-light: #7ab8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#289abb",
  "rgb": {
    "r": 40,
    "g": 154,
    "b": 187
  },
  "hsl": {
    "h": 193.469,
    "s": 64.758,
    "l": 44.51
  },
  "oklch": {
    "l": 0.63945,
    "c": 0.10793,
    "h": 222.3
  },
  "luminance": 0.2715
}

Semantic roles & 50–950 ramp

primary

#289ABB

secondary

#CB8874

accent

#6640E8

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289ABB

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

Preview Lab → · Contrast checker → · Palette generator →