#237FB2#237FB2

#237FB2 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.8% C 0.114 H 238.6°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#237FB2
RGB	rgb(35, 127, 178)
HSL	hsl(201, 67%, 42%)
HSV	hsv(201, 80%, 70%)
CMYK	cmyk(80.3%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(50.39, -8.29, -34.36)
CIE-LCH	lch(50.39, 35.35, 256.43°)
OKLab	oklab(56.83% -0.0594 -0.0972)
OKLCH	oklch(56.83% 0.114 238.6)
XYZ	xyz(16.3152, 18.7484, 44.8698)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237FB2 #B25623

analogous

#23B29E #237FB2 #2337B2

triadic

#237FB2 #B2237F #7FB223

tetradic

#237FB2 #9E23B2 #B25623 #37B223

square

#237FB2 #9E23B2 #B25623 #37B223

split-complementary

#237FB2 #B22337 #B29E23

monochromatic

#0F364C #195B7F #237FB2 #3AA0D8 #6DB9E2

Accessibility & contrast

On white

4.42

#237FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#237FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237FB2

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237FB2	#FFFFFF	#000000	##000000
##237FB2	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB4

Deuteranopia (green-blind)

#5372B1

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #237fb2;
/* rgb */ color: rgb(35, 127, 178);
/* oklch */ color: oklch(56.8% 0.114 238.6);

Tailwind

colors: {
  custom: {
    50: '#75a4c9',
    500: '#237fb2',
    950: '#000000',
  },
}

SCSS

$custom: #237fb2;
$custom-light: #75a4c9;
$custom-dark: #000000;

JSON

{
  "hex": "#237fb2",
  "rgb": {
    "r": 35,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 201.399,
    "s": 67.136,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56825,
    "c": 0.11393,
    "h": 238.6
  },
  "luminance": 0.1875
}

Semantic roles & 50–950 ramp

primary

#237FB2

secondary

#C98B68

accent

#7B3EEA

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #237FB2

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

Preview Lab → · Contrast checker → · Palette generator →