#237DB2#237DB2

#237DB2 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.115 H 240.1°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#237DB2
RGB	rgb(35, 125, 178)
HSL	hsl(202, 67%, 42%)
HSV	hsv(202, 80%, 70%)
CMYK	cmyk(80.3%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(49.78, -7.12, -35.32)
CIE-LCH	lch(49.78, 36.03, 258.60°)
OKLab	oklab(56.34% -0.0575 -0.1)
OKLCH	oklch(56.34% 0.115 240.1)
XYZ	xyz(16.0595, 18.2369, 44.7845)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237DB2 #B25823

analogous

#23B2A0 #237DB2 #2335B2

triadic

#237DB2 #B2237D #7DB223

tetradic

#237DB2 #A023B2 #B25823 #35B223

square

#237DB2 #A023B2 #B25823 #35B223

split-complementary

#237DB2 #B22335 #B2A023

monochromatic

#0F354C #19597F #237DB2 #3A9ED8 #6DB7E2

Accessibility & contrast

On white

4.52

#237DB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#237DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237DB2

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237DB2	#FFFFFF	#000000	##000000
##237DB2	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647EB4

Deuteranopia (green-blind)

#5071B1

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #237db2;
/* rgb */ color: rgb(35, 125, 178);
/* oklch */ color: oklch(56.3% 0.115 240.1);

Tailwind

colors: {
  custom: {
    50: '#75a2c9',
    500: '#237db2',
    950: '#000000',
  },
}

SCSS

$custom: #237db2;
$custom-light: #75a2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#237db2",
  "rgb": {
    "r": 35,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 202.238,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56341,
    "c": 0.1154,
    "h": 240.1
  },
  "luminance": 0.18239
}

Semantic roles & 50–950 ramp

primary

#237DB2

secondary

#C98C68

accent

#7E3EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #237DB2

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

Preview Lab → · Contrast checker → · Palette generator →