#237AB0#237AB0

#237AB0 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.5% C 0.115 H 241.4°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#237AB0
RGB	rgb(35, 122, 176)
HSL	hsl(203, 67%, 41%)
HSV	hsv(203, 80%, 69%)
CMYK	cmyk(80.1%, 30.7%, 0%, 31%)
CIE-LAB	lab(48.77, -6.10, -35.75)
CIE-LCH	lch(48.77, 36.27, 260.32°)
OKLab	oklab(55.51% -0.0554 -0.1013)
OKLCH	oklch(55.51% 0.115 241.4)
XYZ	xyz(15.4861, 17.4091, 43.6100)
Luminance	0.1741 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237AB0 #B05923

analogous

#23B0A0 #237AB0 #2333B0

triadic

#237AB0 #B0237A #7AB023

tetradic

#237AB0 #A023B0 #B05923 #33B023

square

#237AB0 #A023B0 #B05923 #33B023

split-complementary

#237AB0 #B02333 #B0A023

monochromatic

#0F334A #19577D #237AB0 #399BD8 #6CB5E2

Accessibility & contrast

On white

4.69

#237AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#237AB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #237AB0

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237AB0	#FFFFFF	#000000	##FFFFFF
##237AB0	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#617BB2

Deuteranopia (green-blind)

#4D6EAF

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #237ab0;
/* rgb */ color: rgb(35, 122, 176);
/* oklch */ color: oklch(55.5% 0.115 241.4);

Tailwind

colors: {
  custom: {
    50: '#75a0c8',
    500: '#237ab0',
    950: '#000000',
  },
}

SCSS

$custom: #237ab0;
$custom-light: #75a0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#237ab0",
  "rgb": {
    "r": 35,
    "g": 122,
    "b": 176
  },
  "hsl": {
    "h": 202.979,
    "s": 66.825,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55508,
    "c": 0.11548,
    "h": 241.4
  },
  "luminance": 0.17411
}

Semantic roles & 50–950 ramp

primary

#237AB0

secondary

#C88C67

accent

#803EEA

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #237AB0

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

Preview Lab → · Contrast checker → · Palette generator →