#237FD4#237FD4

#237FD4 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.154 H 251.2°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#237FD4
RGB	rgb(35, 127, 212)
HSL	hsl(209, 72%, 48%)
HSV	hsv(209, 83%, 83%)
CMYK	cmyk(83.5%, 40.1%, 0%, 16.9%)
CIE-LAB	lab(52.16, 4.40, -50.99)
CIE-LCH	lch(52.16, 51.18, 274.93°)
OKLab	oklab(58.79% -0.0498 -0.1459)
OKLCH	oklch(58.79% 0.154 251.2)
XYZ	xyz(20.1616, 20.2870, 65.1277)
Luminance	0.2029 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237FD4 #D47823

analogous

#23D4D0 #237FD4 #2326D4

triadic

#237FD4 #D4237F #7FD423

tetradic

#237FD4 #D023D4 #D47823 #26D423

square

#237FD4 #D023D4 #D47823 #26D423

split-complementary

#237FD4 #D42326 #D4D023

monochromatic

#12406B #1A609F #237FD4 #529DE2 #86BBEB

Accessibility & contrast

On white

4.15

#237FD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#237FD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237FD4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237FD4	#FFFFFF	#000000	##000000
##237FD4	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5585D7

Deuteranopia (green-blind)

#3775D2

Tritanopia (blue-blind)

#00939F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #237fd4;
/* rgb */ color: rgb(35, 127, 212);
/* oklch */ color: oklch(58.8% 0.154 251.2);

Tailwind

colors: {
  custom: {
    50: '#7ca3e2',
    500: '#237fd4',
    950: '#000000',
  },
}

SCSS

$custom: #237fd4;
$custom-light: #7ca3e2;
$custom-dark: #000000;

JSON

{
  "hex": "#237fd4",
  "rgb": {
    "r": 35,
    "g": 127,
    "b": 212
  },
  "hsl": {
    "h": 208.814,
    "s": 71.66,
    "l": 48.431
  },
  "oklch": {
    "l": 0.58795,
    "c": 0.15414,
    "h": 251.2
  },
  "luminance": 0.2029
}

Semantic roles & 50–950 ramp

primary

#237FD4

secondary

#D4A87E

accent

#9039EE

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #237FD4

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

Preview Lab → · Contrast checker → · Palette generator →