#2179A9#2179A9

#2179A9 is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.8% C 0.109 H 238.2°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#2179A9
RGB	rgb(33, 121, 169)
HSL	hsl(201, 67%, 40%)
HSV	hsv(201, 80%, 66%)
CMYK	cmyk(80.5%, 28.4%, 0%, 33.7%)
CIE-LAB	lab(48.08, -8.31, -32.76)
CIE-LCH	lch(48.08, 33.80, 255.78°)
OKLab	oklab(54.84% -0.0576 -0.0927)
OKLCH	oklch(54.84% 0.109 238.2)
XYZ	xyz(14.6232, 16.8609, 40.0122)
Luminance	0.1686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2179A9 #A95121

analogous

#21A995 #2179A9 #2135A9

triadic

#2179A9 #A92179 #79A921

tetradic

#2179A9 #9521A9 #A95121 #35A921

square

#2179A9 #9521A9 #A95121 #35A921

split-complementary

#2179A9 #A92135 #A99521

monochromatic

#0D3043 #175476 #2179A9 #319CD7 #64B5E1

Accessibility & contrast

On white

4.80

#2179A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#2179A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2179A9

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2179A9	#FFFFFF	#000000	##FFFFFF
##2179A9	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6279AB

Deuteranopia (green-blind)

#506DA8

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #2179a9;
/* rgb */ color: rgb(33, 121, 169);
/* oklch */ color: oklch(54.8% 0.109 238.2);

Tailwind

colors: {
  custom: {
    50: '#739fc3',
    500: '#2179a9',
    950: '#000000',
  },
}

SCSS

$custom: #2179a9;
$custom-light: #739fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#2179a9",
  "rgb": {
    "r": 33,
    "g": 121,
    "b": 169
  },
  "hsl": {
    "h": 201.176,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.5484,
    "c": 0.1091,
    "h": 238.2
  },
  "luminance": 0.16863
}

Semantic roles & 50–950 ramp

primary

#2179A9

secondary

#C68460

accent

#7B3EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #2179A9

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

Preview Lab → · Contrast checker → · Palette generator →