#2B73BB#2B73BB

#2B73BB is a mid, vivid cyan. Relative luminance 0.164; OKLCH L 54.7% C 0.133 H 251.6°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#2B73BB
RGB	rgb(43, 115, 187)
HSL	hsl(210, 63%, 45%)
HSV	hsv(210, 77%, 73%)
CMYK	cmyk(77%, 38.5%, 0%, 26.7%)
CIE-LAB	lab(47.44, 3.14, -44.20)
CIE-LCH	lch(47.44, 44.32, 274.07°)
OKLab	oklab(54.71% -0.0418 -0.1261)
OKLCH	oklch(54.71% 0.133 251.6)
XYZ	xyz(16.0933, 16.3610, 49.3139)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B73BB #BB732B

analogous

#2BBBBB #2B73BB #2B2BBB

triadic

#2B73BB #BB2B73 #73BB2B

tetradic

#2B73BB #BB2BBB #BB732B #2BBB2B

square

#2B73BB #BB2BBB #BB732B #2BBB2B

split-complementary

#2B73BB #BB2B2B #BBBB2B

monochromatic

#143657 #205489 #2B73BB #4D92D6 #7FB0E2

Accessibility & contrast

On white

4.92

#2B73BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#2B73BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B73BB

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B73BB	#FFFFFF	#000000	##FFFFFF
##2B73BB	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5178BE

Deuteranopia (green-blind)

#3B6BBA

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #2b73bb;
/* rgb */ color: rgb(43, 115, 187);
/* oklch */ color: oklch(54.7% 0.133 251.6);

Tailwind

colors: {
  custom: {
    50: '#799ad0',
    500: '#2b73bb',
    950: '#000000',
  },
}

SCSS

$custom: #2b73bb;
$custom-light: #799ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b73bb",
  "rgb": {
    "r": 43,
    "g": 115,
    "b": 187
  },
  "hsl": {
    "h": 210,
    "s": 62.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.54708,
    "c": 0.13285,
    "h": 251.6
  },
  "luminance": 0.16363
}

Semantic roles & 50–950 ramp

primary

#2B73BB

secondary

#CAA178

accent

#9442E6

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2B73BB

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

Preview Lab → · Contrast checker → · Palette generator →