#31B5D0#31B5D0

#31B5D0 is a light, moderate cyan. Relative luminance 0.383; OKLCH L 71.6% C 0.115 H 215.0°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#31B5D0
RGB	rgb(49, 181, 208)
HSL	hsl(190, 63%, 50%)
HSV	hsv(190, 76%, 82%)
CMYK	cmyk(76.4%, 13%, 0%, 18.4%)
CIE-LAB	lab(68.21, -25.69, -23.66)
CIE-LCH	lch(68.21, 34.92, 222.65°)
OKLab	oklab(71.57% -0.0941 -0.066)
OKLCH	oklch(71.57% 0.115 215)
XYZ	xyz(29.1708, 38.2512, 65.5081)
Luminance	0.3826 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B5D0 #D04C31

analogous

#31D09C #31B5D0 #3165D0

triadic

#31B5D0 #D031B5 #B5D031

tetradic

#31B5D0 #9C31D0 #D04C31 #65D031

square

#31B5D0 #9C31D0 #D04C31 #65D031

split-complementary

#31B5D0 #D03165 #D09C31

monochromatic

#195F6E #248B9F #31B5D0 #63C7DB #95D9E7

Accessibility & contrast

On white

2.43

#31B5D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#31B5D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B5D0

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B5D0	#FFFFFF	#000000	##000000
##31B5D0	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2AFD2

Deuteranopia (green-blind)

#8DA0D0

Tritanopia (blue-blind)

#00BFBD

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #31b5d0;
/* rgb */ color: rgb(49, 181, 208);
/* oklch */ color: oklch(71.6% 0.115 215.0);

Tailwind

colors: {
  custom: {
    50: '#82cbde',
    500: '#31b5d0',
    950: '#000000',
  },
}

SCSS

$custom: #31b5d0;
$custom-light: #82cbde;
$custom-dark: #000000;

JSON

{
  "hex": "#31b5d0",
  "rgb": {
    "r": 49,
    "g": 181,
    "b": 208
  },
  "hsl": {
    "h": 190.189,
    "s": 62.846,
    "l": 50.392
  },
  "oklch": {
    "l": 0.7157,
    "c": 0.11499,
    "h": 215
  },
  "luminance": 0.38255
}

Semantic roles & 50–950 ramp

primary

#31B5D0

secondary

#D2978B

accent

#5E42E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #31B5D0

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

Preview Lab → · Contrast checker → · Palette generator →