#237D9E#237D9E

#237D9E is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.3% C 0.096 H 227.5°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#237D9E
RGB	rgb(35, 125, 158)
HSL	hsl(196, 64%, 38%)
HSV	hsv(196, 78%, 62%)
CMYK	cmyk(77.8%, 20.9%, 0%, 38%)
CIE-LAB	lab(48.87, -14.34, -25.11)
CIE-LCH	lch(48.87, 28.92, 240.27°)
OKLab	oklab(55.32% -0.0646 -0.0705)
OKLCH	oklch(55.32% 0.096 227.5)
XYZ	xyz(14.1958, 17.4915, 34.9691)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237D9E #9E4423

analogous

#239E82 #237D9E #233F9E

triadic

#237D9E #9E237D #7D9E23

tetradic

#237D9E #82239E #9E4423 #3F9E23

square

#237D9E #82239E #9E4423 #3F9E23

split-complementary

#237D9E #9E233F #9E8223

monochromatic

#0D2E3A #18556C #237D9E #2EA5D0 #60BADC

Accessibility & contrast

On white

4.67

#237D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#237D9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #237D9E

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237D9E	#FFFFFF	#000000	##FFFFFF
##237D9E	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA0

Deuteranopia (green-blind)

#5B6F9E

Tritanopia (blue-blind)

#008688

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #237d9e;
/* rgb */ color: rgb(35, 125, 158);
/* oklch */ color: oklch(55.3% 0.096 227.5);

Tailwind

colors: {
  custom: {
    50: '#72a2ba',
    500: '#237d9e',
    950: '#000000',
  },
}

SCSS

$custom: #237d9e;
$custom-light: #72a2ba;
$custom-dark: #000000;

JSON

{
  "hex": "#237d9e",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 158
  },
  "hsl": {
    "h": 196.098,
    "s": 63.731,
    "l": 37.843
  },
  "oklch": {
    "l": 0.55318,
    "c": 0.09561,
    "h": 227.5
  },
  "luminance": 0.17493
}

Semantic roles & 50–950 ramp

primary

#237D9E

secondary

#C1775C

accent

#6E41E7

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #237D9E

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

Preview Lab → · Contrast checker → · Palette generator →