#31B7DB#31B7DB

#31B7DB is a light, vivid cyan. Relative luminance 0.396; OKLCH L 72.5% C 0.121 H 220.7°. Best body text is #000000 at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#31B7DB
RGB	rgb(49, 183, 219)
HSL	hsl(193, 70%, 53%)
HSV	hsv(193, 78%, 86%)
CMYK	cmyk(77.6%, 16.4%, 0%, 14.1%)
CIE-LAB	lab(69.21, -23.16, -28.16)
CIE-LCH	lch(69.21, 36.46, 230.56°)
OKLab	oklab(72.51% -0.0918 -0.0788)
OKLCH	oklch(72.51% 0.121 220.7)
XYZ	xyz(30.9809, 39.6306, 73.0207)
Luminance	0.3963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B7DB #DB5531

analogous

#31DBAA #31B7DB #3162DB

triadic

#31B7DB #DB31B7 #B7DB31

tetradic

#31B7DB #AA31DB #DB5531 #62DB31

square

#31B7DB #AA31DB #DB5531 #62DB31

split-complementary

#31B7DB #DB3162 #DBAA31

monochromatic

#16667C #1F91B0 #31B7DB #65C9E4 #99DBED

Accessibility & contrast

On white

2.35

#31B7DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.93

#31B7DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B7DB

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B7DB	#FFFFFF	#000000	##000000
##31B7DB	1.00	2.35	8.93	8.93
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.93	21.00	1.00	1.00
##000000	8.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B2DD

Deuteranopia (green-blind)

#8BA2DB

Tritanopia (blue-blind)

#00C3C3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #31b7db;
/* rgb */ color: rgb(49, 183, 219);
/* oklch */ color: oklch(72.5% 0.121 220.7);

Tailwind

colors: {
  custom: {
    50: '#84cce6',
    500: '#31b7db',
    950: '#000000',
  },
}

SCSS

$custom: #31b7db;
$custom-light: #84cce6;
$custom-dark: #000000;

JSON

{
  "hex": "#31b7db",
  "rgb": {
    "r": 49,
    "g": 183,
    "b": 219
  },
  "hsl": {
    "h": 192.706,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.72509,
    "c": 0.12097,
    "h": 220.7
  },
  "luminance": 0.39634
}

Semantic roles & 50–950 ramp

primary

#31B7DB

secondary

#D99F8F

accent

#613BED

background

#F8FCFE

surface

#F0F9FC

border

#CBD2D5

text

#0D1316

muted

#7D8284

Preview Lab

Preview with #31B7DB

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

Preview Lab → · Contrast checker → · Palette generator →