#237EB1#237EB1

#237EB1 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.5% C 0.114 H 238.8°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#237EB1
RGB	rgb(35, 126, 177)
HSL	hsl(202, 67%, 42%)
HSV	hsv(202, 80%, 69%)
CMYK	cmyk(80.2%, 28.8%, 0%, 30.6%)
CIE-LAB	lab(50.04, -8.08, -34.34)
CIE-LCH	lch(50.04, 35.28, 256.76°)
OKLab	oklab(56.53% -0.0588 -0.0972)
OKLCH	oklch(56.53% 0.114 238.8)
XYZ	xyz(16.0867, 18.4514, 44.3001)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237EB1 #B15623

analogous

#23B19D #237EB1 #2337B1

triadic

#237EB1 #B1237E #7EB123

tetradic

#237EB1 #9D23B1 #B15623 #37B123

square

#237EB1 #9D23B1 #B15623 #37B123

split-complementary

#237EB1 #B12337 #B19D23

monochromatic

#0F354B #195A7E #237EB1 #399FD8 #6CB8E2

Accessibility & contrast

On white

4.48

#237EB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#237EB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237EB1

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237EB1	#FFFFFF	#000000	##000000
##237EB1	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667EB3

Deuteranopia (green-blind)

#5371B0

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #237eb1;
/* rgb */ color: rgb(35, 126, 177);
/* oklch */ color: oklch(56.5% 0.114 238.8);

Tailwind

colors: {
  custom: {
    50: '#75a3c8',
    500: '#237eb1',
    950: '#000000',
  },
}

SCSS

$custom: #237eb1;
$custom-light: #75a3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#237eb1",
  "rgb": {
    "r": 35,
    "g": 126,
    "b": 177
  },
  "hsl": {
    "h": 201.549,
    "s": 66.981,
    "l": 41.569
  },
  "oklch": {
    "l": 0.56529,
    "c": 0.11356,
    "h": 238.8
  },
  "luminance": 0.18453
}

Semantic roles & 50–950 ramp

primary

#237EB1

secondary

#C88A68

accent

#7C3EEA

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #237EB1

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

Preview Lab → · Contrast checker → · Palette generator →