#237F9F#237F9F

#237F9F is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 55.9% C 0.096 H 226.3°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#237F9F
RGB	rgb(35, 127, 159)
HSL	hsl(195, 64%, 38%)
HSV	hsv(195, 78%, 62%)
CMYK	cmyk(78%, 20.1%, 0%, 37.6%)
CIE-LAB	lab(49.54, -15.11, -24.66)
CIE-LCH	lch(49.54, 28.92, 238.51°)
OKLab	oklab(55.87% -0.0662 -0.0692)
OKLCH	oklch(55.87% 0.096 226.3)
XYZ	xyz(14.5379, 18.0375, 35.5095)
Luminance	0.1804 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237F9F #9F4323

analogous

#239F81 #237F9F #23419F

triadic

#237F9F #9F237F #7F9F23

tetradic

#237F9F #81239F #9F4323 #419F23

square

#237F9F #81239F #9F4323 #419F23

split-complementary

#237F9F #9F2341 #9F8123

monochromatic

#0D2F3B #18576D #237F9F #2EA7D1 #60BCDC

Accessibility & contrast

On white

4.56

#237F9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#237F9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237F9F

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237F9F	#FFFFFF	#000000	##000000
##237F9F	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7CA1

Deuteranopia (green-blind)

#5D719F

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #237f9f;
/* rgb */ color: rgb(35, 127, 159);
/* oklch */ color: oklch(55.9% 0.096 226.3);

Tailwind

colors: {
  custom: {
    50: '#72a4bb',
    500: '#237f9f',
    950: '#000000',
  },
}

SCSS

$custom: #237f9f;
$custom-light: #72a4bb;
$custom-dark: #000000;

JSON

{
  "hex": "#237f9f",
  "rgb": {
    "r": 35,
    "g": 127,
    "b": 159
  },
  "hsl": {
    "h": 195.484,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.55867,
    "c": 0.09576,
    "h": 226.3
  },
  "luminance": 0.18039
}

Semantic roles & 50–950 ramp

primary

#237F9F

secondary

#C1775D

accent

#6C41E7

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #237F9F

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

Preview Lab → · Contrast checker → · Palette generator →