#31A4BC#31A4BC
#31A4BC is a light, moderate cyan. Relative luminance 0.308; OKLCH L 66.6% C 0.104 H 215.0°. Best body text is #000000 at 7.17:1 contrast (WCAG AA passes).
Color values
| HEX | #31A4BC |
|---|---|
| RGB | rgb(49, 164, 188) |
| HSL | hsl(190, 59%, 46%) |
| HSV | hsv(190, 74%, 74%) |
| CMYK | cmyk(73.9%, 12.8%, 0%, 26.3%) |
| CIE-LAB | lab(62.37, -23.45, -21.49) |
| CIE-LCH | lch(62.37, 31.81, 222.50°) |
| OKLab | oklab(66.63% -0.0856 -0.0599) |
| OKLCH | oklch(66.63% 0.104 215) |
| XYZ | xyz(23.6153, 30.8319, 52.2737) |
| Luminance | 0.3084 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 4.78
Cadetblue
#5F9EA0
ΔE00 8.21
Greyblue
#77A1B5
ΔE00 8.78
Teal Blue
#01889F
ΔE00 9.54
Bluegrey
#85A3B2
ΔE00 11.36
Dirty Blue
#3F829D
ΔE00 11.89
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#31A4BC #BC4931
analogous
#31BC8F #31A4BC #315FBC
triadic
#31A4BC #BC31A4 #A4BC31
tetradic
#31A4BC #8F31BC #BC4931 #5FBC31
square
#31A4BC #8F31BC #BC4931 #5FBC31
split-complementary
#31A4BC #BC315F #BC8F31
monochromatic
#184F5B #247A8B #31A4BC #57BED3 #88D1E0
Accessibility & contrast
On white
2.93
#31A4BC on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.17
#31A4BC on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #31A4BC
7.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##31A4BC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##31A4BC | 1.00 | 2.93 | 7.17 | 7.17 |
| #FFFFFF | 2.93 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.17 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.17 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#939FBD
Deuteranopia (green-blind)
#8091BC
Tritanopia (blue-blind)
#00ADAB
Achromatopsia (no color)
#979797
Design tokens & code
CSS
--color: #31a4bc; /* rgb */ color: rgb(49, 164, 188); /* oklch */ color: oklch(66.6% 0.104 215.0);
Tailwind
colors: {
custom: {
50: '#7ebfd0',
500: '#31a4bc',
950: '#000000',
},
}SCSS
$custom: #31a4bc; $custom-light: #7ebfd0; $custom-dark: #000000;
JSON
{
"hex": "#31a4bc",
"rgb": {
"r": 49,
"g": 164,
"b": 188
},
"hsl": {
"h": 190.36,
"s": 58.65,
"l": 46.471
},
"oklch": {
"l": 0.66626,
"c": 0.10449,
"h": 215
},
"luminance": 0.30835
}Semantic roles & 50–950 ramp
primary
#31A4BC
secondary
#CA8C7F
accent
#6146E2
background
#F8FBFC
surface
#EFF7F9
border
#CAD0D2
text
#0B1214
muted
#7C8182