#2159AC#2159AC

#2159AC is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.5% C 0.145 H 258.6°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#2159AC
RGB	rgb(33, 89, 172)
HSL	hsl(216, 68%, 40%)
HSV	hsv(216, 81%, 67%)
CMYK	cmyk(80.8%, 48.3%, 0%, 32.5%)
CIE-LAB	lab(38.63, 12.85, -49.55)
CIE-LCH	lch(38.63, 51.19, 284.54°)
OKLab	oklab(47.49% -0.0287 -0.1424)
OKLCH	oklch(47.49% 0.145 258.6)
XYZ	xyz(11.6432, 10.4452, 40.4242)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2159AC #AC7421

analogous

#219FAC #2159AC #2E21AC

triadic

#2159AC #AC2159 #59AC21

tetradic

#2159AC #AC219F #AC7421 #21AC2E

square

#2159AC #AC219F #AC7421 #21AC2E

split-complementary

#2159AC #AC2E21 #9FAC21

monochromatic

#0D2445 #173E79 #2159AC #3275D8 #6698E2

Accessibility & contrast

On white

6.80

#2159AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#2159AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2159AC

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2159AC	#FFFFFF	#000000	##FFFFFF
##2159AC	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A62AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2159ac;
/* rgb */ color: rgb(33, 89, 172);
/* oklch */ color: oklch(47.5% 0.145 258.6);

Tailwind

colors: {
  custom: {
    50: '#7387c5',
    500: '#2159ac',
    950: '#000000',
  },
}

SCSS

$custom: #2159ac;
$custom-light: #7387c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2159ac",
  "rgb": {
    "r": 33,
    "g": 89,
    "b": 172
  },
  "hsl": {
    "h": 215.827,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.47492,
    "c": 0.1453,
    "h": 258.6
  },
  "luminance": 0.10447
}

Semantic roles & 50–950 ramp

primary

#2159AC

secondary

#C79E62

accent

#A53DEB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #2159AC

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

Preview Lab → · Contrast checker → · Palette generator →