#289DB3#289DB3

#289DB3 is a light, moderate teal. Relative luminance 0.278; OKLCH L 64.3% C 0.103 H 213.6°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#289DB3
RGB	rgb(40, 157, 179)
HSL	hsl(189, 63%, 43%)
HSV	hsv(189, 78%, 70%)
CMYK	cmyk(77.7%, 12.3%, 0%, 29.8%)
CIE-LAB	lab(59.72, -23.81, -20.48)
CIE-LCH	lch(59.72, 31.41, 220.71°)
OKLab	oklab(64.34% -0.0859 -0.0571)
OKLCH	oklch(64.34% 0.103 213.6)
XYZ	xyz(21.0652, 27.8171, 46.8981)
Luminance	0.2782 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289DB3 #B33E28

analogous

#28B383 #289DB3 #2858B3

triadic

#289DB3 #B3289D #9DB328

tetradic

#289DB3 #8328B3 #B33E28 #58B328

square

#289DB3 #8328B3 #B33E28 #58B328

split-complementary

#289DB3 #B32858 #B38328

monochromatic

#12454F #1D7181 #289DB3 #43BED5 #75CFE0

Accessibility & contrast

On white

3.20

#289DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#289DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289DB3

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289DB3	#FFFFFF	#000000	##000000
##289DB3	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D98B4

Deuteranopia (green-blind)

#7A8AB3

Tritanopia (blue-blind)

#00A5A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #289db3;
/* rgb */ color: rgb(40, 157, 179);
/* oklch */ color: oklch(64.3% 0.103 213.6);

Tailwind

colors: {
  custom: {
    50: '#79bac9',
    500: '#289db3',
    950: '#000000',
  },
}

SCSS

$custom: #289db3;
$custom-light: #79bac9;
$custom-dark: #000000;

JSON

{
  "hex": "#289db3",
  "rgb": {
    "r": 40,
    "g": 157,
    "b": 179
  },
  "hsl": {
    "h": 189.496,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.64337,
    "c": 0.10318,
    "h": 213.6
  },
  "luminance": 0.2782
}

Semantic roles & 50–950 ramp

primary

#289DB3

secondary

#C87D6F

accent

#5B41E6

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #289DB3

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

Preview Lab → · Contrast checker → · Palette generator →