#237AA8#237AA8

#237AA8 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.1% C 0.107 H 237.1°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#237AA8
RGB	rgb(35, 122, 168)
HSL	hsl(201, 66%, 40%)
HSV	hsv(201, 79%, 66%)
CMYK	cmyk(79.2%, 27.4%, 0%, 34.1%)
CIE-LAB	lab(48.39, -9.04, -31.70)
CIE-LCH	lch(48.39, 32.97, 254.09°)
OKLab	oklab(55.08% -0.058 -0.0896)
OKLCH	oklch(55.08% 0.107 237.1)
XYZ	xyz(14.7177, 17.1018, 39.5635)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237AA8 #A85123

analogous

#23A894 #237AA8 #2338A8

triadic

#237AA8 #A8237A #7AA823

tetradic

#237AA8 #9423A8 #A85123 #38A823

square

#237AA8 #9423A8 #A85123 #38A823

split-complementary

#237AA8 #A82338 #A89423

monochromatic

#0E3043 #185575 #237AA8 #349DD5 #66B5DF

Accessibility & contrast

On white

4.75

#237AA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#237AA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237AA8

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237AA8	#FFFFFF	#000000	##FFFFFF
##237AA8	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647AAA

Deuteranopia (green-blind)

#526DA7

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #237aa8;
/* rgb */ color: rgb(35, 122, 168);
/* oklch */ color: oklch(55.1% 0.107 237.1);

Tailwind

colors: {
  custom: {
    50: '#73a0c2',
    500: '#237aa8',
    950: '#000000',
  },
}

SCSS

$custom: #237aa8;
$custom-light: #73a0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#237aa8",
  "rgb": {
    "r": 35,
    "g": 122,
    "b": 168
  },
  "hsl": {
    "h": 200.752,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.55078,
    "c": 0.10672,
    "h": 237.1
  },
  "luminance": 0.17104
}

Semantic roles & 50–950 ramp

primary

#237AA8

secondary

#C58462

accent

#7A3FE8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#090E12

muted

#7B7E81

Preview Lab

Preview with #237AA8

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

Preview Lab → · Contrast checker → · Palette generator →