#289BB2#289BB2

#289BB2 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 63.8% C 0.103 H 214.7°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#289BB2
RGB	rgb(40, 155, 178)
HSL	hsl(190, 63%, 43%)
HSV	hsv(190, 78%, 70%)
CMYK	cmyk(77.5%, 12.9%, 0%, 30.2%)
CIE-LAB	lab(59.07, -23.11, -20.91)
CIE-LCH	lch(59.07, 31.16, 222.15°)
OKLab	oklab(63.8% -0.0843 -0.0584)
OKLCH	oklch(63.8% 0.103 214.7)
XYZ	xyz(20.6289, 27.1056, 46.2555)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#289BB2 #B23F28

analogous

#28B284 #289BB2 #2856B2

triadic

#289BB2 #B2289B #9BB228

tetradic

#289BB2 #8428B2 #B23F28 #56B228

square

#289BB2 #8428B2 #B23F28 #56B228

split-complementary

#289BB2 #B22856 #B28428

monochromatic

#12444E #1D6F80 #289BB2 #43BCD5 #75CEE0

Accessibility & contrast

On white

3.27

#289BB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#289BB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289BB2

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##289BB2	#FFFFFF	#000000	##000000
##289BB2	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B96B3

Deuteranopia (green-blind)

#7888B2

Tritanopia (blue-blind)

#00A4A2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #289bb2;
/* rgb */ color: rgb(40, 155, 178);
/* oklch */ color: oklch(63.8% 0.103 214.7);

Tailwind

colors: {
  custom: {
    50: '#79b8c9',
    500: '#289bb2',
    950: '#000000',
  },
}

SCSS

$custom: #289bb2;
$custom-light: #79b8c9;
$custom-dark: #000000;

JSON

{
  "hex": "#289bb2",
  "rgb": {
    "r": 40,
    "g": 155,
    "b": 178
  },
  "hsl": {
    "h": 190,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.638,
    "c": 0.10257,
    "h": 214.7
  },
  "luminance": 0.27108
}

Semantic roles & 50–950 ramp

primary

#289BB2

secondary

#C77D6F

accent

#5D41E6

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #289BB2

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

Preview Lab → · Contrast checker → · Palette generator →