#237FA9#237FA9

#237FA9 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.4% C 0.105 H 233.4°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#237FA9
RGB	rgb(35, 127, 169)
HSL	hsl(199, 66%, 40%)
HSV	hsv(199, 79%, 66%)
CMYK	cmyk(79.3%, 24.9%, 0%, 33.7%)
CIE-LAB	lab(49.98, -11.56, -29.80)
CIE-LCH	lch(49.98, 31.97, 248.81°)
OKLab	oklab(56.36% -0.0625 -0.084)
OKLCH	oklch(56.36% 0.105 233.4)
XYZ	xyz(15.4410, 18.3988, 40.2659)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237FA9 #A94D23

analogous

#23A990 #237FA9 #233CA9

triadic

#237FA9 #A9237F #7FA923

tetradic

#237FA9 #9023A9 #A94D23 #3CA923

square

#237FA9 #9023A9 #A94D23 #3CA923

split-complementary

#237FA9 #A9233C #A99023

monochromatic

#0E3344 #195976 #237FA9 #34A3D5 #67BADF

Accessibility & contrast

On white

4.49

#237FA9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#237FA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237FA9

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237FA9	#FFFFFF	#000000	##000000
##237FA9	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7EAB

Deuteranopia (green-blind)

#5871A8

Tritanopia (blue-blind)

#008A8D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #237fa9;
/* rgb */ color: rgb(35, 127, 169);
/* oklch */ color: oklch(56.4% 0.105 233.4);

Tailwind

colors: {
  custom: {
    50: '#74a4c2',
    500: '#237fa9',
    950: '#000000',
  },
}

SCSS

$custom: #237fa9;
$custom-light: #74a4c2;
$custom-dark: #000000;

JSON

{
  "hex": "#237fa9",
  "rgb": {
    "r": 35,
    "g": 127,
    "b": 169
  },
  "hsl": {
    "h": 198.806,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.56357,
    "c": 0.10469,
    "h": 233.4
  },
  "luminance": 0.18401
}

Semantic roles & 50–950 ramp

primary

#237FA9

secondary

#C58263

accent

#743FE9

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #237FA9

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

Preview Lab → · Contrast checker → · Palette generator →