#2170A9#2170A9

#2170A9 is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.7% C 0.116 H 245.0°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#2170A9
RGB	rgb(33, 112, 169)
HSL	hsl(205, 67%, 40%)
HSV	hsv(205, 80%, 66%)
CMYK	cmyk(80.5%, 33.7%, 0%, 33.7%)
CIE-LAB	lab(45.32, -2.94, -37.11)
CIE-LCH	lch(45.32, 37.22, 265.48°)
OKLab	oklab(52.65% -0.0492 -0.1055)
OKLCH	oklch(52.65% 0.116 245)
XYZ	xyz(13.5800, 14.7746, 39.6645)
Luminance	0.1478 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170A9 #A95A21

analogous

#21A99E #2170A9 #212CA9

triadic

#2170A9 #A92170 #70A921

tetradic

#2170A9 #9E21A9 #A95A21 #2CA921

square

#2170A9 #9E21A9 #A95A21 #2CA921

split-complementary

#2170A9 #A9212C #A99E21

monochromatic

#0D2C43 #174E76 #2170A9 #3191D7 #64ACE1

Accessibility & contrast

On white

5.31

#2170A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#2170A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170A9

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170A9	#FFFFFF	#000000	##FFFFFF
##2170A9	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5572AB

Deuteranopia (green-blind)

#4266A8

Tritanopia (blue-blind)

#007E85

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #2170a9;
/* rgb */ color: rgb(33, 112, 169);
/* oklch */ color: oklch(52.7% 0.116 245.0);

Tailwind

colors: {
  custom: {
    50: '#7298c3',
    500: '#2170a9',
    950: '#000000',
  },
}

SCSS

$custom: #2170a9;
$custom-light: #7298c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2170a9",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 169
  },
  "hsl": {
    "h": 205.147,
    "s": 67.327,
    "l": 39.608
  },
  "oklch": {
    "l": 0.52654,
    "c": 0.11636,
    "h": 245
  },
  "luminance": 0.14776
}

Semantic roles & 50–950 ramp

primary

#2170A9

secondary

#C68B60

accent

#863EEA

background

#F7F9FC

surface

#EDF2F8

border

#C8CCD1

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2170A9

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

Preview Lab → · Contrast checker → · Palette generator →