#237B9C#237B9C

#237B9C is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 54.7% C 0.095 H 228.0°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#237B9C
RGB	rgb(35, 123, 156)
HSL	hsl(196, 63%, 37%)
HSV	hsv(196, 78%, 61%)
CMYK	cmyk(77.6%, 21.2%, 0%, 38.8%)
CIE-LAB	lab(48.16, -13.93, -25.04)
CIE-LCH	lch(48.16, 28.66, 240.92°)
OKLab	oklab(54.72% -0.0633 -0.0703)
OKLCH	oklch(54.72% 0.095 228)
XYZ	xyz(13.7744, 16.9219, 33.9863)
Luminance	0.1692 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237B9C #9C4423

analogous

#239C81 #237B9C #233E9C

triadic

#237B9C #9C237B #7B9C23

tetradic

#237B9C #81239C #9C4423 #3E9C23

square

#237B9C #81239C #9C4423 #3E9C23

split-complementary

#237B9C #9C233E #9C8123

monochromatic

#0D2C38 #18546A #237B9C #2EA2CE #5EB9DB

Accessibility & contrast

On white

4.79

#237B9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#237B9C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237B9C

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237B9C	#FFFFFF	#000000	##FFFFFF
##237B9C	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A799E

Deuteranopia (green-blind)

#596D9C

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #237b9c;
/* rgb */ color: rgb(35, 123, 156);
/* oklch */ color: oklch(54.7% 0.095 228.0);

Tailwind

colors: {
  custom: {
    50: '#71a1b9',
    500: '#237b9c',
    950: '#000000',
  },
}

SCSS

$custom: #237b9c;
$custom-light: #71a1b9;
$custom-dark: #000000;

JSON

{
  "hex": "#237b9c",
  "rgb": {
    "r": 35,
    "g": 123,
    "b": 156
  },
  "hsl": {
    "h": 196.364,
    "s": 63.351,
    "l": 37.451
  },
  "oklch": {
    "l": 0.5472,
    "c": 0.09465,
    "h": 228
  },
  "luminance": 0.16924
}

Semantic roles & 50–950 ramp

primary

#237B9C

secondary

#C0775B

accent

#6E41E6

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090F11

muted

#7B7E80

Preview Lab

Preview with #237B9C

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

Preview Lab → · Contrast checker → · Palette generator →