#237FA1#237FA1

#237FA1 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.0% C 0.097 H 227.8°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#237FA1
RGB	rgb(35, 127, 161)
HSL	hsl(196, 64%, 38%)
HSV	hsv(196, 78%, 63%)
CMYK	cmyk(78.3%, 21.1%, 0%, 36.9%)
CIE-LAB	lab(49.63, -14.41, -25.70)
CIE-LCH	lch(49.63, 29.46, 240.73°)
OKLab	oklab(55.96% -0.0654 -0.0722)
OKLCH	oklch(55.96% 0.097 227.8)
XYZ	xyz(14.7129, 18.1075, 36.4310)
Luminance	0.1811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#237FA1 #A14523

analogous

#23A184 #237FA1 #2340A1

triadic

#237FA1 #A1237F #7FA123

tetradic

#237FA1 #8423A1 #A14523 #40A123

square

#237FA1 #8423A1 #A14523 #40A123

split-complementary

#237FA1 #A12340 #A18423

monochromatic

#0D303C #18576F #237FA1 #2FA6D2 #62BCDD

Accessibility & contrast

On white

4.54

#237FA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#237FA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #237FA1

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##237FA1	#FFFFFF	#000000	##000000
##237FA1	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7DA3

Deuteranopia (green-blind)

#5C71A1

Tritanopia (blue-blind)

#00898A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #237fa1;
/* rgb */ color: rgb(35, 127, 161);
/* oklch */ color: oklch(56.0% 0.097 227.8);

Tailwind

colors: {
  custom: {
    50: '#72a4bd',
    500: '#237fa1',
    950: '#000000',
  },
}

SCSS

$custom: #237fa1;
$custom-light: #72a4bd;
$custom-dark: #000000;

JSON

{
  "hex": "#237fa1",
  "rgb": {
    "r": 35,
    "g": 127,
    "b": 161
  },
  "hsl": {
    "h": 196.19,
    "s": 64.286,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55962,
    "c": 0.09741,
    "h": 227.8
  },
  "luminance": 0.18109
}

Semantic roles & 50–950 ramp

primary

#237FA1

secondary

#C2795E

accent

#6E41E7

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #237FA1

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

Preview Lab → · Contrast checker → · Palette generator →