#1F728C#1F728C
#1F728C is a mid, moderate cyan. Relative luminance 0.142; OKLCH L 51.6% C 0.086 H 223.6°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).
Color values
| HEX | #1F728C |
|---|---|
| RGB | rgb(31, 114, 140) |
| HSL | hsl(194, 64%, 34%) |
| HSV | hsv(194, 78%, 55%) |
| CMYK | cmyk(77.9%, 18.6%, 0%, 45.1%) |
| CIE-LAB | lab(44.54, -15.01, -21.19) |
| CIE-LCH | lch(44.54, 25.97, 234.70°) |
| OKLab | oklab(51.57% -0.0622 -0.0594) |
| OKLCH | oklch(51.57% 0.086 223.6) |
| XYZ | xyz(11.3140, 14.2180, 26.9539) |
| Luminance | 0.1422 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 2.19
Ocean
#017B92
ΔE00 4.08
Ocean Blue (survey)
#03719C
ΔE00 5.41
Cerulean
#007BA7
ΔE00 6.19
Dirty Blue
#3F829D
ΔE00 6.71
Ugly Blue
#31668A
ΔE00 7.62
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F728C #8C391F
analogous
#1F8C6F #1F728C #1F3B8C
triadic
#1F728C #8C1F72 #728C1F
tetradic
#1F728C #6F1F8C #8C391F #3B8C1F
square
#1F728C #6F1F8C #8C391F #3B8C1F
split-complementary
#1F728C #8C1F3B #8C6F1F
monochromatic
#092028 #14495A #1F728C #2A9BBE #4EB7D8
Accessibility & contrast
On white
5.46
#1F728C on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.84
#1F728C on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1F728C
5.46:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F728C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F728C | 1.00 | 5.46 | 3.84 | 5.46 |
| #FFFFFF | 5.46 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.84 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.46 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#636F8D
Deuteranopia (green-blind)
#55658C
Tritanopia (blue-blind)
#007A7A
Achromatopsia (no color)
#696969
Design tokens & code
CSS
--color: #1f728c; /* rgb */ color: rgb(31, 114, 140); /* oklch */ color: oklch(51.6% 0.086 223.6);
Tailwind
colors: {
custom: {
50: '#6d9aad',
500: '#1f728c',
950: '#000000',
},
}SCSS
$custom: #1f728c; $custom-light: #6d9aad; $custom-dark: #000000;
JSON
{
"hex": "#1f728c",
"rgb": {
"r": 31,
"g": 114,
"b": 140
},
"hsl": {
"h": 194.312,
"s": 63.743,
"l": 33.529
},
"oklch": {
"l": 0.51573,
"c": 0.08602,
"h": 223.6
},
"luminance": 0.14219
}Semantic roles & 50–950 ramp
primary
#1F728C
secondary
#BB674C
accent
#6941E7
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#080E10
muted
#7B7E7F