#289CBF#289CBF

#289CBF is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.6% C 0.110 H 223.4°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#289CBF
RGB	rgb(40, 156, 191)
HSL	hsl(194, 65%, 45%)
HSV	hsv(194, 79%, 75%)
CMYK	cmyk(79.1%, 18.3%, 0%, 25.1%)
CIE-LAB	lab(59.88, -19.30, -27.01)
CIE-LCH	lch(59.88, 33.20, 234.45°)
OKLab	oklab(64.61% -0.0802 -0.0757)
OKLCH	oklch(64.61% 0.11 223.4)
XYZ	xyz(22.1636, 27.9869, 53.5140)
Luminance	0.2799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289CBF #BF4B28

analogous

#28BF96 #289CBF #2851BF

triadic

#289CBF #BF289C #9CBF28

tetradic

#289CBF #9628BF #BF4B28 #51BF28

square

#289CBF #9628BF #BF4B28 #51BF28

split-complementary

#289CBF #BF2851 #BF9628

monochromatic

#13495A #1D738C #289CBF #4BB8D9 #7ECCE4

Accessibility & contrast

On white

3.18

#289CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#289CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289CBF

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289CBF	#FFFFFF	#000000	##000000
##289CBF	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)

#8898C1

Deuteranopia (green-blind)

#748ABF

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #289cbf;
/* rgb */ color: rgb(40, 156, 191);
/* oklch */ color: oklch(64.6% 0.110 223.4);

Tailwind

colors: {
  custom: {
    50: '#7bb9d2',
    500: '#289cbf',
    950: '#000000',
  },
}

SCSS

$custom: #289cbf;
$custom-light: #7bb9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#289cbf",
  "rgb": {
    "r": 40,
    "g": 156,
    "b": 191
  },
  "hsl": {
    "h": 193.907,
    "s": 65.368,
    "l": 45.294
  },
  "oklch": {
    "l": 0.64613,
    "c": 0.11029,
    "h": 223.4
  },
  "luminance": 0.2799
}

Semantic roles & 50–950 ramp

primary

#289CBF

secondary

#CC8A77

accent

#673FE8

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #289CBF

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

Preview Lab → · Contrast checker → · Palette generator →