#197DB4#197DB4

#197DB4 is a mid, vivid cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.120 H 239.8°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#197DB4
RGB	rgb(25, 125, 180)
HSL	hsl(201, 76%, 40%)
HSV	hsv(201, 86%, 71%)
CMYK	cmyk(86.1%, 30.6%, 0%, 29.4%)
CIE-LAB	lab(49.70, -7.28, -36.62)
CIE-LCH	lch(49.70, 37.34, 258.76°)
OKLab	oklab(56.25% -0.0606 -0.1039)
OKLCH	oklch(56.25% 0.12 239.8)
XYZ	xyz(15.9694, 18.1671, 45.8361)
Luminance	0.1817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#197DB4 #B45019

analogous

#19B49D #197DB4 #1930B4

triadic

#197DB4 #B4197D #7DB419

tetradic

#197DB4 #9D19B4 #B45019 #30B419

square

#197DB4 #9D19B4 #B45019 #30B419

split-complementary

#197DB4 #B41930 #B49D19

monochromatic

#0A3249 #12587E #197DB4 #29A0E1 #5FB8E9

Accessibility & contrast

On white

4.53

#197DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#197DB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #197DB4

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##197DB4	#FFFFFF	#000000	##000000
##197DB4	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637EB6

Deuteranopia (green-blind)

#4E70B3

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #197db4;
/* rgb */ color: rgb(25, 125, 180);
/* oklch */ color: oklch(56.3% 0.120 239.8);

Tailwind

colors: {
  custom: {
    50: '#73a2ca',
    500: '#197db4',
    950: '#000000',
  },
}

SCSS

$custom: #197db4;
$custom-light: #73a2ca;
$custom-dark: #000000;

JSON

{
  "hex": "#197db4",
  "rgb": {
    "r": 25,
    "g": 125,
    "b": 180
  },
  "hsl": {
    "h": 201.29,
    "s": 75.61,
    "l": 40.196
  },
  "oklch": {
    "l": 0.56254,
    "c": 0.12027,
    "h": 239.8
  },
  "luminance": 0.18169
}

Semantic roles & 50–950 ramp

primary

#197DB4

secondary

#CD845C

accent

#7936F2

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #197DB4

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

Preview Lab → · Contrast checker → · Palette generator →