#2170AA#2170AA

#2170AA is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.7% C 0.118 H 245.4°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#2170AA
RGB	rgb(33, 112, 170)
HSL	hsl(205, 67%, 40%)
HSV	hsv(205, 81%, 67%)
CMYK	cmyk(80.6%, 34.1%, 0%, 33.3%)
CIE-LAB	lab(45.38, -2.56, -37.61)
CIE-LCH	lch(45.38, 37.70, 266.11°)
OKLab	oklab(52.71% -0.0489 -0.1069)
OKLCH	oklch(52.71% 0.118 245.4)
XYZ	xyz(13.6743, 14.8123, 40.1608)
Luminance	0.1481 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170AA #AA5B21

analogous

#21AA9F #2170AA #212CAA

triadic

#2170AA #AA2170 #70AA21

tetradic

#2170AA #9F21AA #AA5B21 #2CAA21

square

#2170AA #9F21AA #AA5B21 #2CAA21

split-complementary

#2170AA #AA212C #AA9F21

monochromatic

#0D2C43 #174E77 #2170AA #3191D7 #64ACE1

Accessibility & contrast

On white

5.30

#2170AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#2170AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170AA

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170AA	#FFFFFF	#000000	##FFFFFF
##2170AA	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5572AC

Deuteranopia (green-blind)

#4166A9

Tritanopia (blue-blind)

#007E85

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #2170aa;
/* rgb */ color: rgb(33, 112, 170);
/* oklch */ color: oklch(52.7% 0.118 245.4);

Tailwind

colors: {
  custom: {
    50: '#7398c3',
    500: '#2170aa',
    950: '#000000',
  },
}

SCSS

$custom: #2170aa;
$custom-light: #7398c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2170aa",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 170
  },
  "hsl": {
    "h": 205.401,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.52712,
    "c": 0.11759,
    "h": 245.4
  },
  "luminance": 0.14814
}

Semantic roles & 50–950 ramp

primary

#2170AA

secondary

#C68C61

accent

#873DEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2170AA

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

Preview Lab → · Contrast checker → · Palette generator →