#237D9A#237D9A

#237D9A is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.1% C 0.092 H 224.3°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#237D9A
RGB	rgb(35, 125, 154)
HSL	hsl(195, 63%, 37%)
HSV	hsv(195, 77%, 60%)
CMYK	cmyk(77.3%, 18.8%, 0%, 39.6%)
CIE-LAB	lab(48.71, -15.75, -23.03)
CIE-LCH	lch(48.71, 27.90, 235.64°)
OKLab	oklab(55.13% -0.0661 -0.0645)
OKLCH	oklch(55.13% 0.092 224.3)
XYZ	xyz(13.8571, 17.3560, 33.1853)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237D9A #9A4023

analogous

#239A7C #237D9A #23419A

triadic

#237D9A #9A237D #7D9A23

tetradic

#237D9A #7C239A #9A4023 #419A23

square

#237D9A #7C239A #9A4023 #419A23

split-complementary

#237D9A #9A2341 #9A7C23

monochromatic

#0C2C36 #185568 #237D9A #2EA5CC #5DBCDA

Accessibility & contrast

On white

4.70

#237D9A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#237D9A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237D9A

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237D9A	#FFFFFF	#000000	##FFFFFF
##237D9A	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7A9B

Deuteranopia (green-blind)

#5D6F9A

Tritanopia (blue-blind)

#008686

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #237d9a;
/* rgb */ color: rgb(35, 125, 154);
/* oklch */ color: oklch(55.1% 0.092 224.3);

Tailwind

colors: {
  custom: {
    50: '#71a2b7',
    500: '#237d9a',
    950: '#000000',
  },
}

SCSS

$custom: #237d9a;
$custom-light: #71a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#237d9a",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 154
  },
  "hsl": {
    "h": 194.622,
    "s": 62.963,
    "l": 37.059
  },
  "oklch": {
    "l": 0.55128,
    "c": 0.0924,
    "h": 224.3
  },
  "luminance": 0.17358
}

Semantic roles & 50–950 ramp

primary

#237D9A

secondary

#BF735A

accent

#6A42E6

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #237D9A

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

Preview Lab → · Contrast checker → · Palette generator →