#2170A4#2170A4

#2170A4 is a mid, moderate cyan. Relative luminance 0.146; OKLCH L 52.4% C 0.110 H 242.7°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#2170A4
RGB	rgb(33, 112, 164)
HSL	hsl(204, 66%, 39%)
HSV	hsv(204, 80%, 64%)
CMYK	cmyk(79.9%, 31.7%, 0%, 35.7%)
CIE-LAB	lab(45.07, -4.82, -34.58)
CIE-LCH	lch(45.07, 34.91, 262.06°)
OKLab	oklab(52.37% -0.0507 -0.0981)
OKLCH	oklch(52.37% 0.11 242.7)
XYZ	xyz(13.1196, 14.5904, 37.2395)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170A4 #A45521

analogous

#21A496 #2170A4 #212EA4

triadic

#2170A4 #A42170 #70A421

tetradic

#2170A4 #9621A4 #A45521 #2EA421

square

#2170A4 #9621A4 #A45521 #2EA421

split-complementary

#2170A4 #A4212E #A49621

monochromatic

#0C2A3E #174D71 #2170A4 #2D92D5 #60ADDF

Accessibility & contrast

On white

5.36

#2170A4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#2170A4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170A4

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170A4	#FFFFFF	#000000	##FFFFFF
##2170A4	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5871A6

Deuteranopia (green-blind)

#4665A3

Tritanopia (blue-blind)

#007D82

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #2170a4;
/* rgb */ color: rgb(33, 112, 164);
/* oklch */ color: oklch(52.4% 0.110 242.7);

Tailwind

colors: {
  custom: {
    50: '#7198bf',
    500: '#2170a4',
    950: '#000000',
  },
}

SCSS

$custom: #2170a4;
$custom-light: #7198bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2170a4",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 164
  },
  "hsl": {
    "h": 203.817,
    "s": 66.497,
    "l": 38.627
  },
  "oklch": {
    "l": 0.52368,
    "c": 0.11042,
    "h": 242.7
  },
  "luminance": 0.14592
}

Semantic roles & 50–950 ramp

primary

#2170A4

secondary

#C4865D

accent

#823EE9

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2170A4

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

Preview Lab → · Contrast checker → · Palette generator →