#197F9B#197F9B

#197F9B is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.5% C 0.096 H 221.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#197F9B
RGB	rgb(25, 127, 155)
HSL	hsl(193, 72%, 35%)
HSV	hsv(193, 84%, 61%)
CMYK	cmyk(83.9%, 18.1%, 0%, 39.2%)
CIE-LAB	lab(49.19, -17.54, -22.88)
CIE-LCH	lch(49.19, 28.83, 232.52°)
OKLab	oklab(55.48% -0.0715 -0.0642)
OKLCH	oklch(55.48% 0.096 221.9)
XYZ	xyz(13.9042, 17.7502, 33.6973)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#197F9B #9B3519

analogous

#199B76 #197F9B #193E9B

triadic

#197F9B #9B197F #7F9B19

tetradic

#197F9B #76199B #9B3519 #3E9B19

square

#197F9B #76199B #9B3519 #3E9B19

split-complementary

#197F9B #9B193E #9B7619

monochromatic

#082932 #115466 #197F9B #22AAD0 #4CC2E2

Accessibility & contrast

On white

4.61

#197F9B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#197F9B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #197F9B

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##197F9B	#FFFFFF	#000000	##FFFFFF
##197F9B	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7C9C

Deuteranopia (green-blind)

#5E709B

Tritanopia (blue-blind)

#008888

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #197f9b;
/* rgb */ color: rgb(25, 127, 155);
/* oklch */ color: oklch(55.5% 0.096 221.9);

Tailwind

colors: {
  custom: {
    50: '#6fa4b8',
    500: '#197f9b',
    950: '#000000',
  },
}

SCSS

$custom: #197f9b;
$custom-light: #6fa4b8;
$custom-dark: #000000;

JSON

{
  "hex": "#197f9b",
  "rgb": {
    "r": 25,
    "g": 127,
    "b": 155
  },
  "hsl": {
    "h": 192.923,
    "s": 72.222,
    "l": 35.294
  },
  "oklch": {
    "l": 0.55478,
    "c": 0.09604,
    "h": 221.9
  },
  "luminance": 0.17752
}

Semantic roles & 50–950 ramp

primary

#197F9B

secondary

#C4664C

accent

#6039EF

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #197F9B

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

Preview Lab → · Contrast checker → · Palette generator →