#2179A1#2179A1

#2179A1 is a mid, moderate cyan. Relative luminance 0.166; OKLCH L 54.4% C 0.101 H 233.2°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#2179A1
RGB	rgb(33, 121, 161)
HSL	hsl(199, 66%, 38%)
HSV	hsv(199, 80%, 63%)
CMYK	cmyk(79.5%, 24.8%, 0%, 36.9%)
CIE-LAB	lab(47.71, -11.23, -28.67)
CIE-LCH	lch(47.71, 30.79, 248.61°)
OKLab	oklab(54.42% -0.0604 -0.0808)
OKLCH	oklch(54.42% 0.101 233.2)
XYZ	xyz(13.8950, 16.5696, 36.1772)
Luminance	0.1657 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2179A1 #A14921

analogous

#21A189 #2179A1 #2139A1

triadic

#2179A1 #A12179 #79A121

tetradic

#2179A1 #8921A1 #A14921 #39A121

square

#2179A1 #8921A1 #A14921 #39A121

split-complementary

#2179A1 #A12139 #A18921

monochromatic

#0C2D3B #17536E #2179A1 #2C9FD4 #5EB6DE

Accessibility & contrast

On white

4.87

#2179A1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#2179A1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2179A1

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2179A1	#FFFFFF	#000000	##FFFFFF
##2179A1	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6578A3

Deuteranopia (green-blind)

#546CA0

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #2179a1;
/* rgb */ color: rgb(33, 121, 161);
/* oklch */ color: oklch(54.4% 0.101 233.2);

Tailwind

colors: {
  custom: {
    50: '#719fbd',
    500: '#2179a1',
    950: '#000000',
  },
}

SCSS

$custom: #2179a1;
$custom-light: #719fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#2179a1",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 161
  },
  "hsl": {
    "h": 198.75,
    "s": 65.979,
    "l": 38.039
  },
  "oklch": {
    "l": 0.54422,
    "c": 0.10087,
    "h": 233.2
  },
  "luminance": 0.16571
}

Semantic roles & 50–950 ramp

primary

#2179A1

secondary

#C37B5B

accent

#743FE9

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2179A1

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

Preview Lab → · Contrast checker → · Palette generator →