#237E9D#237E9D

#237E9D is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.094 H 225.7°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#237E9D
RGB	rgb(35, 126, 157)
HSL	hsl(195, 64%, 38%)
HSV	hsv(195, 78%, 62%)
CMYK	cmyk(77.7%, 19.7%, 0%, 38.4%)
CIE-LAB	lab(49.14, -15.25, -24.11)
CIE-LCH	lch(49.14, 28.53, 237.68°)
OKLab	oklab(55.52% -0.0659 -0.0676)
OKLCH	oklch(55.52% 0.094 225.7)
XYZ	xyz(14.2373, 17.7116, 34.5601)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237E9D #9D4223

analogous

#239D7F #237E9D #23419D

triadic

#237E9D #9D237E #7E9D23

tetradic

#237E9D #7F239D #9D4223 #419D23

square

#237E9D #7F239D #9D4223 #419D23

split-complementary

#237E9D #9D2341 #9D7F23

monochromatic

#0D2E39 #18566B #237E9D #2EA6CF #5FBCDB

Accessibility & contrast

On white

4.62

#237E9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#237E9D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #237E9D

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237E9D	#FFFFFF	#000000	##FFFFFF
##237E9D	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7B9F

Deuteranopia (green-blind)

#5D709D

Tritanopia (blue-blind)

#008788

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #237e9d;
/* rgb */ color: rgb(35, 126, 157);
/* oklch */ color: oklch(55.5% 0.094 225.7);

Tailwind

colors: {
  custom: {
    50: '#72a3ba',
    500: '#237e9d',
    950: '#000000',
  },
}

SCSS

$custom: #237e9d;
$custom-light: #72a3ba;
$custom-dark: #000000;

JSON

{
  "hex": "#237e9d",
  "rgb": {
    "r": 35,
    "g": 126,
    "b": 157
  },
  "hsl": {
    "h": 195.246,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.55521,
    "c": 0.09446,
    "h": 225.7
  },
  "luminance": 0.17713
}

Semantic roles & 50–950 ramp

primary

#237E9D

secondary

#C0755C

accent

#6B41E7

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #237E9D

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

Preview Lab → · Contrast checker → · Palette generator →