#2171A9#2171A9

#2171A9 is a mid, moderate cyan. Relative luminance 0.150; OKLCH L 52.9% C 0.115 H 244.3°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#2171A9
RGB	rgb(33, 113, 169)
HSL	hsl(205, 67%, 40%)
HSV	hsv(205, 80%, 66%)
CMYK	cmyk(80.5%, 33.1%, 0%, 33.7%)
CIE-LAB	lab(45.63, -3.54, -36.62)
CIE-LCH	lch(45.63, 36.80, 264.47°)
OKLab	oklab(52.9% -0.0501 -0.104)
OKLCH	oklch(52.9% 0.115 244.3)
XYZ	xyz(13.6910, 14.9965, 39.7015)
Luminance	0.1500 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2171A9 #A95921

analogous

#21A99D #2171A9 #212DA9

triadic

#2171A9 #A92171 #71A921

tetradic

#2171A9 #9D21A9 #A95921 #2DA921

square

#2171A9 #9D21A9 #A95921 #2DA921

split-complementary

#2171A9 #A9212D #A99D21

monochromatic

#0D2D43 #174F76 #2171A9 #3192D7 #64ADE1

Accessibility & contrast

On white

5.25

#2171A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#2171A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2171A9

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2171A9	#FFFFFF	#000000	##FFFFFF
##2171A9	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5773AB

Deuteranopia (green-blind)

#4466A8

Tritanopia (blue-blind)

#007F85

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #2171a9;
/* rgb */ color: rgb(33, 113, 169);
/* oklch */ color: oklch(52.9% 0.115 244.3);

Tailwind

colors: {
  custom: {
    50: '#7299c3',
    500: '#2171a9',
    950: '#000000',
  },
}

SCSS

$custom: #2171a9;
$custom-light: #7299c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2171a9",
  "rgb": {
    "r": 33,
    "g": 113,
    "b": 169
  },
  "hsl": {
    "h": 204.706,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.52895,
    "c": 0.11547,
    "h": 244.3
  },
  "luminance": 0.14998
}

Semantic roles & 50–950 ramp

primary

#2171A9

secondary

#C68A60

accent

#853EEA

background

#F7F9FC

surface

#EDF2F8

border

#C8CCD1

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2171A9

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

Preview Lab → · Contrast checker → · Palette generator →