#237AA9#237AA9

#237AA9 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.1% C 0.108 H 237.7°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#237AA9
RGB	rgb(35, 122, 169)
HSL	hsl(201, 66%, 40%)
HSV	hsv(201, 79%, 66%)
CMYK	cmyk(79.3%, 27.8%, 0%, 33.7%)
CIE-LAB	lab(48.44, -8.67, -32.21)
CIE-LCH	lch(48.44, 33.36, 254.93°)
OKLab	oklab(55.13% -0.0577 -0.0911)
OKLCH	oklch(55.13% 0.108 237.7)
XYZ	xyz(14.8113, 17.1392, 40.0560)
Luminance	0.1714 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237AA9 #A95223

analogous

#23A995 #237AA9 #2337A9

triadic

#237AA9 #A9237A #7AA923

tetradic

#237AA9 #9523A9 #A95223 #37A923

square

#237AA9 #9523A9 #A95223 #37A923

split-complementary

#237AA9 #A92337 #A99523

monochromatic

#0E3144 #195576 #237AA9 #349DD5 #67B5DF

Accessibility & contrast

On white

4.74

#237AA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#237AA9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237AA9

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237AA9	#FFFFFF	#000000	##FFFFFF
##237AA9	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647AAB

Deuteranopia (green-blind)

#516DA8

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237aa9;
/* rgb */ color: rgb(35, 122, 169);
/* oklch */ color: oklch(55.1% 0.108 237.7);

Tailwind

colors: {
  custom: {
    50: '#73a0c2',
    500: '#237aa9',
    950: '#000000',
  },
}

SCSS

$custom: #237aa9;
$custom-light: #73a0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#237aa9",
  "rgb": {
    "r": 35,
    "g": 122,
    "b": 169
  },
  "hsl": {
    "h": 201.045,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.5513,
    "c": 0.10777,
    "h": 237.7
  },
  "luminance": 0.17141
}

Semantic roles & 50–950 ramp

primary

#237AA9

secondary

#C58563

accent

#7B3FE9

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #237AA9

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

Preview Lab → · Contrast checker → · Palette generator →