#31B1D0#31B1D0

#31B1D0 is a light, moderate cyan. Relative luminance 0.367; OKLCH L 70.6% C 0.115 H 218.3°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#31B1D0
RGB	rgb(49, 177, 208)
HSL	hsl(192, 63%, 50%)
HSV	hsv(192, 76%, 82%)
CMYK	cmyk(76.4%, 14.9%, 0%, 18.4%)
CIE-LAB	lab(67.01, -23.66, -25.49)
CIE-LCH	lch(67.01, 34.78, 227.12°)
OKLab	oklab(70.61% -0.0903 -0.0712)
OKLCH	oklch(70.61% 0.115 218.3)
XYZ	xyz(28.3691, 36.6479, 65.2409)
Luminance	0.3665 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B1D0 #D05031

analogous

#31D09F #31B1D0 #3161D0

triadic

#31B1D0 #D031B1 #B1D031

tetradic

#31B1D0 #9F31D0 #D05031 #61D031

square

#31B1D0 #9F31D0 #D05031 #61D031

split-complementary

#31B1D0 #D03161 #D09F31

monochromatic

#195D6E #24879F #31B1D0 #63C4DB #95D7E7

Accessibility & contrast

On white

2.52

#31B1D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#31B1D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B1D0

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B1D0	#FFFFFF	#000000	##000000
##31B1D0	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DACD2

Deuteranopia (green-blind)

#889CD0

Tritanopia (blue-blind)

#00BCBB

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #31b1d0;
/* rgb */ color: rgb(49, 177, 208);
/* oklch */ color: oklch(70.6% 0.115 218.3);

Tailwind

colors: {
  custom: {
    50: '#82c8de',
    500: '#31b1d0',
    950: '#000000',
  },
}

SCSS

$custom: #31b1d0;
$custom-light: #82c8de;
$custom-dark: #000000;

JSON

{
  "hex": "#31b1d0",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 208
  },
  "hsl": {
    "h": 191.698,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.70609,
    "c": 0.11503,
    "h": 218.3
  },
  "luminance": 0.36651
}

Semantic roles & 50–950 ramp

primary

#31B1D0

secondary

#D2998B

accent

#6242E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #31B1D0

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

Preview Lab → · Contrast checker → · Palette generator →