#2171AA#2171AA

#2171AA is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 53.0% C 0.117 H 244.7°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#2171AA
RGB	rgb(33, 113, 170)
HSL	hsl(205, 67%, 40%)
HSV	hsv(205, 81%, 67%)
CMYK	cmyk(80.6%, 33.5%, 0%, 33.3%)
CIE-LAB	lab(45.68, -3.17, -37.13)
CIE-LCH	lch(45.68, 37.26, 265.13°)
OKLab	oklab(52.95% -0.0498 -0.1055)
OKLCH	oklch(52.95% 0.117 244.7)
XYZ	xyz(13.7852, 15.0342, 40.1978)
Luminance	0.1504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2171AA #AA5A21

analogous

#21AA9F #2171AA #212CAA

triadic

#2171AA #AA2171 #71AA21

tetradic

#2171AA #9F21AA #AA5A21 #2CAA21

square

#2171AA #9F21AA #AA5A21 #2CAA21

split-complementary

#2171AA #AA212C #AA9F21

monochromatic

#0D2D43 #174F77 #2171AA #3192D7 #64ADE1

Accessibility & contrast

On white

5.24

#2171AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#2171AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2171AA

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2171AA	#FFFFFF	#000000	##FFFFFF
##2171AA	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5673AC

Deuteranopia (green-blind)

#4367A9

Tritanopia (blue-blind)

#007F85

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #2171aa;
/* rgb */ color: rgb(33, 113, 170);
/* oklch */ color: oklch(53.0% 0.117 244.7);

Tailwind

colors: {
  custom: {
    50: '#7399c3',
    500: '#2171aa',
    950: '#000000',
  },
}

SCSS

$custom: #2171aa;
$custom-light: #7399c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2171aa",
  "rgb": {
    "r": 33,
    "g": 113,
    "b": 170
  },
  "hsl": {
    "h": 204.964,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.52953,
    "c": 0.11667,
    "h": 244.7
  },
  "luminance": 0.15036
}

Semantic roles & 50–950 ramp

primary

#2171AA

secondary

#C68B61

accent

#853DEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2171AA

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

Preview Lab → · Contrast checker → · Palette generator →