#289AB2#289AB2

#289AB2 is a light, moderate cyan. Relative luminance 0.268; OKLCH L 63.6% C 0.103 H 215.6°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#289AB2
RGB	rgb(40, 154, 178)
HSL	hsl(190, 63%, 43%)
HSV	hsv(190, 78%, 70%)
CMYK	cmyk(77.5%, 13.5%, 0%, 30.2%)
CIE-LAB	lab(58.76, -22.59, -21.38)
CIE-LCH	lch(58.76, 31.10, 223.43°)
OKLab	oklab(63.55% -0.0834 -0.0597)
OKLCH	oklch(63.55% 0.103 215.6)
XYZ	xyz(20.4631, 26.7742, 46.2003)
Luminance	0.2678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289AB2 #B24028

analogous

#28B285 #289AB2 #2855B2

triadic

#289AB2 #B2289A #9AB228

tetradic

#289AB2 #8528B2 #B24028 #55B228

square

#289AB2 #8528B2 #B24028 #55B228

split-complementary

#289AB2 #B22855 #B28528

monochromatic

#12444E #1D6F80 #289AB2 #43BBD5 #75CDE0

Accessibility & contrast

On white

3.30

#289AB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#289AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289AB2

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289AB2	#FFFFFF	#000000	##000000
##289AB2	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A95B3

Deuteranopia (green-blind)

#7788B2

Tritanopia (blue-blind)

#00A3A1

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #289ab2;
/* rgb */ color: rgb(40, 154, 178);
/* oklch */ color: oklch(63.6% 0.103 215.6);

Tailwind

colors: {
  custom: {
    50: '#79b8c9',
    500: '#289ab2',
    950: '#000000',
  },
}

SCSS

$custom: #289ab2;
$custom-light: #79b8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#289ab2",
  "rgb": {
    "r": 40,
    "g": 154,
    "b": 178
  },
  "hsl": {
    "h": 190.435,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.63553,
    "c": 0.10254,
    "h": 215.6
  },
  "luminance": 0.26777
}

Semantic roles & 50–950 ramp

primary

#289AB2

secondary

#C77E6F

accent

#5E41E6

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #289AB2

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

Preview Lab → · Contrast checker → · Palette generator →