#237A9D#237A9D

#237A9D is a mid, moderate cyan. Relative luminance 0.167; OKLCH L 54.5% C 0.096 H 229.8°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#237A9D
RGB	rgb(35, 122, 157)
HSL	hsl(197, 64%, 38%)
HSV	hsv(197, 78%, 62%)
CMYK	cmyk(77.7%, 22.3%, 0%, 38.4%)
CIE-LAB	lab(47.89, -13.01, -26.05)
CIE-LCH	lch(47.89, 29.12, 243.47°)
OKLab	oklab(54.52% -0.0619 -0.0732)
OKLCH	oklch(54.52% 0.096 229.8)
XYZ	xyz(13.7360, 16.7091, 34.3930)
Luminance	0.1671 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237A9D #9D4623

analogous

#239D83 #237A9D #233D9D

triadic

#237A9D #9D237A #7A9D23

tetradic

#237A9D #83239D #9D4623 #3D9D23

square

#237A9D #83239D #9D4623 #3D9D23

split-complementary

#237A9D #9D233D #9D8323

monochromatic

#0D2C39 #18536B #237A9D #2EA1CF #5FB8DB

Accessibility & contrast

On white

4.84

#237A9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#237A9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237A9D

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237A9D	#FFFFFF	#000000	##FFFFFF
##237A9D	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68789F

Deuteranopia (green-blind)

#586D9D

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #237a9d;
/* rgb */ color: rgb(35, 122, 157);
/* oklch */ color: oklch(54.5% 0.096 229.8);

Tailwind

colors: {
  custom: {
    50: '#71a0ba',
    500: '#237a9d',
    950: '#000000',
  },
}

SCSS

$custom: #237a9d;
$custom-light: #71a0ba;
$custom-dark: #000000;

JSON

{
  "hex": "#237a9d",
  "rgb": {
    "r": 35,
    "g": 122,
    "b": 157
  },
  "hsl": {
    "h": 197.213,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.54518,
    "c": 0.09592,
    "h": 229.8
  },
  "luminance": 0.16711
}

Semantic roles & 50–950 ramp

primary

#237A9D

secondary

#C0785C

accent

#7141E7

background

#F7F9FB

surface

#EDF2F6

border

#C8CCD0

text

#090E11

muted

#7B7E80

Preview Lab

Preview with #237A9D

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

Preview Lab → · Contrast checker → · Palette generator →