#237EB2#237EB2

#237EB2 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.115 H 239.4°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#237EB2
RGB	rgb(35, 126, 178)
HSL	hsl(202, 67%, 42%)
HSV	hsv(202, 80%, 70%)
CMYK	cmyk(80.3%, 29.2%, 0%, 30.2%)
CIE-LAB	lab(50.09, -7.71, -34.84)
CIE-LCH	lch(50.09, 35.68, 257.52°)
OKLab	oklab(56.58% -0.0584 -0.0986)
OKLCH	oklch(56.58% 0.115 239.4)
XYZ	xyz(16.1867, 18.4914, 44.8269)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237EB2 #B25723

analogous

#23B29F #237EB2 #2337B2

triadic

#237EB2 #B2237E #7EB223

tetradic

#237EB2 #9F23B2 #B25723 #37B223

square

#237EB2 #9F23B2 #B25723 #37B223

split-complementary

#237EB2 #B22337 #B29F23

monochromatic

#0F364C #195A7F #237EB2 #3A9FD8 #6DB8E2

Accessibility & contrast

On white

4.47

#237EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#237EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237EB2

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237EB2	#FFFFFF	#000000	##000000
##237EB2	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB4

Deuteranopia (green-blind)

#5271B1

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #237eb2;
/* rgb */ color: rgb(35, 126, 178);
/* oklch */ color: oklch(56.6% 0.115 239.4);

Tailwind

colors: {
  custom: {
    50: '#75a3c9',
    500: '#237eb2',
    950: '#000000',
  },
}

SCSS

$custom: #237eb2;
$custom-light: #75a3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#237eb2",
  "rgb": {
    "r": 35,
    "g": 126,
    "b": 178
  },
  "hsl": {
    "h": 201.818,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56583,
    "c": 0.11465,
    "h": 239.4
  },
  "luminance": 0.18493
}

Semantic roles & 50–950 ramp

primary

#237EB2

secondary

#C98B68

accent

#7C3EEA

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #237EB2

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

Preview Lab → · Contrast checker → · Palette generator →