#1F728E#1F728E
#1F728E is a mid, moderate cyan. Relative luminance 0.143; OKLCH L 51.7% C 0.088 H 225.4°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).
Color values
| HEX | #1F728E |
|---|---|
| RGB | rgb(31, 114, 142) |
| HSL | hsl(195, 64%, 34%) |
| HSV | hsv(195, 78%, 56%) |
| CMYK | cmyk(78.2%, 19.7%, 0%, 44.3%) |
| CIE-LAB | lab(44.63, -14.30, -22.25) |
| CIE-LCH | lch(44.63, 26.45, 237.28°) |
| OKLab | oklab(51.67% -0.0614 -0.0624) |
| OKLCH | oklch(51.67% 0.088 225.4) |
| XYZ | xyz(11.4629, 14.2775, 27.7376) |
| Luminance | 0.1428 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 1.60
Ocean
#017B92
ΔE00 4.56
Ocean Blue (survey)
#03719C
ΔE00 4.62
Cerulean
#007BA7
ΔE00 5.54
Dirty Blue
#3F829D
ΔE00 6.57
Ugly Blue
#31668A
ΔE00 7.04
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F728E #8E3B1F
analogous
#1F8E73 #1F728E #1F3B8E
triadic
#1F728E #8E1F72 #728E1F
tetradic
#1F728E #731F8E #8E3B1F #3B8E1F
square
#1F728E #731F8E #8E3B1F #3B8E1F
split-complementary
#1F728E #8E1F3B #8E731F
monochromatic
#09212A #144A5C #1F728E #2A9AC0 #4FB6D9
Accessibility & contrast
On white
5.45
#1F728E on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.86
#1F728E on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1F728E
5.45:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F728E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F728E | 1.00 | 5.45 | 3.86 | 5.45 |
| #FFFFFF | 5.45 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.86 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.45 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#63708F
Deuteranopia (green-blind)
#54658E
Tritanopia (blue-blind)
#007A7B
Achromatopsia (no color)
#6A6A6A
Design tokens & code
CSS
--color: #1f728e; /* rgb */ color: rgb(31, 114, 142); /* oklch */ color: oklch(51.7% 0.088 225.4);
Tailwind
colors: {
custom: {
50: '#6d9aaf',
500: '#1f728e',
950: '#000000',
},
}SCSS
$custom: #1f728e; $custom-light: #6d9aaf; $custom-dark: #000000;
JSON
{
"hex": "#1f728e",
"rgb": {
"r": 31,
"g": 114,
"b": 142
},
"hsl": {
"h": 195.135,
"s": 64.162,
"l": 33.922
},
"oklch": {
"l": 0.51669,
"c": 0.08758,
"h": 225.4
},
"luminance": 0.14279
}Semantic roles & 50–950 ramp
primary
#1F728E
secondary
#BB694D
accent
#6B41E7
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#080E10
muted
#7B7E7F