#2197B3#2197B3

#2197B3 is a light, moderate cyan. Relative luminance 0.257; OKLCH L 62.7% C 0.105 H 218.6°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#2197B3
RGB	rgb(33, 151, 179)
HSL	hsl(192, 69%, 42%)
HSV	hsv(192, 82%, 70%)
CMYK	cmyk(81.6%, 15.6%, 0%, 29.8%)
CIE-LAB	lab(57.76, -21.39, -23.50)
CIE-LCH	lch(57.76, 31.78, 227.69°)
OKLab	oklab(62.72% -0.0825 -0.0658)
OKLCH	oklch(62.72% 0.106 218.6)
XYZ	xyz(19.8270, 25.7087, 46.5564)
Luminance	0.2571 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2197B3 #B33D21

analogous

#21B386 #2197B3 #214EB3

triadic

#2197B3 #B32197 #97B321

tetradic

#2197B3 #8621B3 #B33D21 #4EB321

square

#2197B3 #8621B3 #B33D21 #4EB321

split-complementary

#2197B3 #B3214E #B38621

monochromatic

#0E404C #176B7F #2197B3 #37BBDA #6BCCE4

Accessibility & contrast

On white

3.42

#2197B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#2197B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2197B3

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2197B3	#FFFFFF	#000000	##000000
##2197B3	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8593B5

Deuteranopia (green-blind)

#7285B3

Tritanopia (blue-blind)

#00A0A0

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #2197b3;
/* rgb */ color: rgb(33, 151, 179);
/* oklch */ color: oklch(62.7% 0.105 218.6);

Tailwind

colors: {
  custom: {
    50: '#77b5c9',
    500: '#2197b3',
    950: '#000000',
  },
}

SCSS

$custom: #2197b3;
$custom-light: #77b5c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2197b3",
  "rgb": {
    "r": 33,
    "g": 151,
    "b": 179
  },
  "hsl": {
    "h": 191.507,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.62721,
    "c": 0.1055,
    "h": 218.6
  },
  "luminance": 0.25711
}

Semantic roles & 50–950 ramp

primary

#2197B3

secondary

#CA7966

accent

#5E3CEC

background

#F7FBFC

surface

#EEF6F8

border

#C9D0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #2197B3

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

Preview Lab → · Contrast checker → · Palette generator →