#2179A4#2179A4

#2179A4 is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.6% C 0.104 H 235.2°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#2179A4
RGB	rgb(33, 121, 164)
HSL	hsl(200, 66%, 39%)
HSV	hsv(200, 80%, 64%)
CMYK	cmyk(79.9%, 26.2%, 0%, 35.7%)
CIE-LAB	lab(47.85, -10.14, -30.21)
CIE-LCH	lch(47.85, 31.87, 251.45°)
OKLab	oklab(54.58% -0.0593 -0.0853)
OKLCH	oklch(54.58% 0.104 235.2)
XYZ	xyz(14.1627, 16.6767, 37.5872)
Luminance	0.1668 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2179A4 #A44C21

analogous

#21A48D #2179A4 #2137A4

triadic

#2179A4 #A42179 #79A421

tetradic

#2179A4 #8D21A4 #A44C21 #37A421

square

#2179A4 #8D21A4 #A44C21 #37A421

split-complementary

#2179A4 #A42137 #A48D21

monochromatic

#0C2E3E #175371 #2179A4 #2D9ED5 #60B5DF

Accessibility & contrast

On white

4.84

#2179A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#2179A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2179A4

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2179A4	#FFFFFF	#000000	##FFFFFF
##2179A4	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6478A6

Deuteranopia (green-blind)

#536CA3

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2179a4;
/* rgb */ color: rgb(33, 121, 164);
/* oklch */ color: oklch(54.6% 0.104 235.2);

Tailwind

colors: {
  custom: {
    50: '#729fbf',
    500: '#2179a4',
    950: '#000000',
  },
}

SCSS

$custom: #2179a4;
$custom-light: #729fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#2179a4",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 164
  },
  "hsl": {
    "h": 199.695,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.54576,
    "c": 0.10387,
    "h": 235.2
  },
  "luminance": 0.16678
}

Semantic roles & 50–950 ramp

primary

#2179A4

secondary

#C47F5D

accent

#773EE9

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2179A4

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

Preview Lab → · Contrast checker → · Palette generator →