#2170A8#2170A8

#2170A8 is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.6% C 0.115 H 244.6°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#2170A8
RGB	rgb(33, 112, 168)
HSL	hsl(205, 67%, 39%)
HSV	hsv(205, 80%, 66%)
CMYK	cmyk(80.4%, 33.3%, 0%, 34.1%)
CIE-LAB	lab(45.27, -3.31, -36.60)
CIE-LCH	lch(45.27, 36.75, 264.83°)
OKLab	oklab(52.6% -0.0495 -0.104)
OKLCH	oklch(52.6% 0.115 244.6)
XYZ	xyz(13.4865, 14.7372, 39.1720)
Luminance	0.1474 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2170A8 #A85921

analogous

#21A89D #2170A8 #212DA8

triadic

#2170A8 #A82170 #70A821

tetradic

#2170A8 #9D21A8 #A85921 #2DA821

square

#2170A8 #9D21A8 #A85921 #2DA821

split-complementary

#2170A8 #A8212D #A89D21

monochromatic

#0D2C42 #174E75 #2170A8 #3091D6 #63ACE0

Accessibility & contrast

On white

5.32

#2170A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#2170A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2170A8

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2170A8	#FFFFFF	#000000	##FFFFFF
##2170A8	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5672AA

Deuteranopia (green-blind)

#4366A7

Tritanopia (blue-blind)

#007E84

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #2170a8;
/* rgb */ color: rgb(33, 112, 168);
/* oklch */ color: oklch(52.6% 0.115 244.6);

Tailwind

colors: {
  custom: {
    50: '#7298c2',
    500: '#2170a8',
    950: '#000000',
  },
}

SCSS

$custom: #2170a8;
$custom-light: #7298c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2170a8",
  "rgb": {
    "r": 33,
    "g": 112,
    "b": 168
  },
  "hsl": {
    "h": 204.889,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.52596,
    "c": 0.11516,
    "h": 244.6
  },
  "luminance": 0.14739
}

Semantic roles & 50–950 ramp

primary

#2170A8

secondary

#C58A5F

accent

#853EEA

background

#F7F9FB

surface

#EDF2F7

border

#C8CCD0

text

#090D12

muted

#7B7E81

Preview Lab

Preview with #2170A8

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

Preview Lab → · Contrast checker → · Palette generator →