#2170A0#2170A0

#2170A0 is a mid, moderate cyan. Relative luminance 0.144; OKLCH L 52.1% C 0.106 H 240.6°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#2170A0
RGB	rgb(33, 112, 160)
HSL	hsl(203, 66%, 38%)
HSV	hsv(203, 79%, 63%)
CMYK	cmyk(79.4%, 30%, 0%, 37.3%)
CIE-LAB	lab(44.87, -6.32, -32.53)
CIE-LCH	lch(44.87, 33.14, 259.01°)
OKLab	oklab(52.15% -0.052 -0.0921)
OKLCH	oklch(52.15% 0.106 240.6)
XYZ	xyz(12.7640, 14.4482, 35.3670)
Luminance	0.1445 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170A0 #A05121

analogous

#21A090 #2170A0 #2131A0

triadic

#2170A0 #A02170 #70A021

tetradic

#2170A0 #9021A0 #A05121 #31A021

square

#2170A0 #9021A0 #A05121 #31A021

split-complementary

#2170A0 #A02131 #A09021

monochromatic

#0C293B #174C6D #2170A0 #2B94D3 #5EADDE

Accessibility & contrast

On white

5.40

#2170A0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#2170A0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170A0

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170A0	#FFFFFF	#000000	##FFFFFF
##2170A0	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5971A2

Deuteranopia (green-blind)

#48659F

Tritanopia (blue-blind)

#007C81

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #2170a0;
/* rgb */ color: rgb(33, 112, 160);
/* oklch */ color: oklch(52.1% 0.106 240.6);

Tailwind

colors: {
  custom: {
    50: '#7198bc',
    500: '#2170a0',
    950: '#000000',
  },
}

SCSS

$custom: #2170a0;
$custom-light: #7198bc;
$custom-dark: #000000;

JSON

{
  "hex": "#2170a0",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 160
  },
  "hsl": {
    "h": 202.677,
    "s": 65.803,
    "l": 37.843
  },
  "oklch": {
    "l": 0.52145,
    "c": 0.10579,
    "h": 240.6
  },
  "luminance": 0.1445
}

Semantic roles & 50–950 ramp

primary

#2170A0

secondary

#C2825B

accent

#7F3FE9

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2170A0

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

Preview Lab → · Contrast checker → · Palette generator →