#237CA9#237CA9

#237CA9 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.6% C 0.106 H 236.0°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#237CA9
RGB	rgb(35, 124, 169)
HSL	hsl(200, 66%, 40%)
HSV	hsv(200, 79%, 66%)
CMYK	cmyk(79.3%, 26.6%, 0%, 33.7%)
CIE-LAB	lab(49.05, -9.83, -31.25)
CIE-LCH	lch(49.05, 32.76, 252.53°)
OKLab	oklab(55.62% -0.0596 -0.0882)
OKLCH	oklch(55.62% 0.106 236)
XYZ	xyz(15.0594, 17.6354, 40.1387)
Luminance	0.1764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237CA9 #A95023

analogous

#23A993 #237CA9 #2339A9

triadic

#237CA9 #A9237C #7CA923

tetradic

#237CA9 #9323A9 #A95023 #39A923

square

#237CA9 #9323A9 #A95023 #39A923

split-complementary

#237CA9 #A92339 #A99323

monochromatic

#0E3244 #195776 #237CA9 #349FD5 #67B7DF

Accessibility & contrast

On white

4.64

#237CA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#237CA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #237CA9

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237CA9	#FFFFFF	#000000	##FFFFFF
##237CA9	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667BAB

Deuteranopia (green-blind)

#546FA8

Tritanopia (blue-blind)

#00888B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #237ca9;
/* rgb */ color: rgb(35, 124, 169);
/* oklch */ color: oklch(55.6% 0.106 236.0);

Tailwind

colors: {
  custom: {
    50: '#73a1c2',
    500: '#237ca9',
    950: '#000000',
  },
}

SCSS

$custom: #237ca9;
$custom-light: #73a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#237ca9",
  "rgb": {
    "r": 35,
    "g": 124,
    "b": 169
  },
  "hsl": {
    "h": 200.149,
    "s": 65.686,
    "l": 40
  },
  "oklch": {
    "l": 0.5562,
    "c": 0.10647,
    "h": 236
  },
  "luminance": 0.17637
}

Semantic roles & 50–950 ramp

primary

#237CA9

secondary

#C58463

accent

#783FE9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090F12

muted

#7B7E81

Preview Lab

Preview with #237CA9

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

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