#237BD5#237BD5

#237BD5 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 58.0% C 0.160 H 253.1°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#237BD5
RGB	rgb(35, 123, 213)
HSL	hsl(210, 72%, 49%)
HSV	hsv(210, 84%, 84%)
CMYK	cmyk(83.6%, 42.3%, 0%, 16.5%)
CIE-LAB	lab(51.07, 7.24, -53.31)
CIE-LCH	lch(51.07, 53.80, 277.73°)
OKLab	oklab(57.96% -0.0464 -0.1528)
OKLCH	oklch(57.96% 0.16 253.1)
XYZ	xyz(19.7818, 19.3249, 65.6254)
Luminance	0.1933 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237BD5 #D57D23

analogous

#23D4D5 #237BD5 #2423D5

triadic

#237BD5 #D5237B #7BD523

tetradic

#237BD5 #D523D4 #D57D23 #23D524

square

#237BD5 #D523D4 #D57D23 #23D524

split-complementary

#237BD5 #D52423 #D4D523

monochromatic

#123E6C #1A5DA0 #237BD5 #539AE3 #87B9EB

Accessibility & contrast

On white

4.32

#237BD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#237BD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237BD5

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237BD5	#FFFFFF	#000000	##000000
##237BD5	1.00	4.32	4.87	4.87
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D82D9

Deuteranopia (green-blind)

#2C72D3

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #237bd5;
/* rgb */ color: rgb(35, 123, 213);
/* oklch */ color: oklch(58.0% 0.160 253.1);

Tailwind

colors: {
  custom: {
    50: '#7ca0e2',
    500: '#237bd5',
    950: '#000000',
  },
}

SCSS

$custom: #237bd5;
$custom-light: #7ca0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#237bd5",
  "rgb": {
    "r": 35,
    "g": 123,
    "b": 213
  },
  "hsl": {
    "h": 210.337,
    "s": 71.774,
    "l": 48.627
  },
  "oklch": {
    "l": 0.57959,
    "c": 0.15966,
    "h": 253.1
  },
  "luminance": 0.19327
}

Semantic roles & 50–950 ramp

primary

#237BD5

secondary

#D5AA7F

accent

#9539EF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0B0E15

muted

#7C7E83

Preview Lab

Preview with #237BD5

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

Preview Lab → · Contrast checker → · Palette generator →