#1F738E#1F738E
#1F738E is a mid, moderate cyan. Relative luminance 0.145; OKLCH L 51.9% C 0.087 H 224.3°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).
Color values
| HEX | #1F738E |
|---|---|
| RGB | rgb(31, 115, 142) |
| HSL | hsl(195, 64%, 34%) |
| HSV | hsv(195, 78%, 56%) |
| CMYK | cmyk(78.2%, 19%, 0%, 44.3%) |
| CIE-LAB | lab(44.95, -14.86, -21.76) |
| CIE-LCH | lch(44.95, 26.35, 235.67°) |
| OKLab | oklab(51.93% -0.0625 -0.061) |
| OKLCH | oklch(51.93% 0.087 224.3) |
| XYZ | xyz(11.5763, 14.5044, 27.7754) |
| Luminance | 0.1451 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Sea Blue
#047495
ΔE00 1.80
Ocean
#017B92
ΔE00 4.01
Ocean Blue (survey)
#03719C
ΔE00 5.10
Cerulean
#007BA7
ΔE00 5.71
Dirty Blue
#3F829D
ΔE00 6.31
Metallic Blue
#4F738E
ΔE00 7.41
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F738E #8E3A1F
analogous
#1F8E72 #1F738E #1F3B8E
triadic
#1F738E #8E1F73 #738E1F
tetradic
#1F738E #721F8E #8E3A1F #3B8E1F
square
#1F738E #721F8E #8E3A1F #3B8E1F
split-complementary
#1F738E #8E1F3B #8E721F
monochromatic
#09222A #144A5C #1F738E #2A9CC0 #4FB7D9
Accessibility & contrast
On white
5.38
#1F738E on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.90
#1F738E on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1F738E
5.38:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F738E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F738E | 1.00 | 5.38 | 3.90 | 5.38 |
| #FFFFFF | 5.38 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.90 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.38 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#64708F
Deuteranopia (green-blind)
#55668E
Tritanopia (blue-blind)
#007B7C
Achromatopsia (no color)
#6A6A6A
Design tokens & code
CSS
--color: #1f738e; /* rgb */ color: rgb(31, 115, 142); /* oklch */ color: oklch(51.9% 0.087 224.3);
Tailwind
colors: {
custom: {
50: '#6d9baf',
500: '#1f738e',
950: '#000000',
},
}SCSS
$custom: #1f738e; $custom-light: #6d9baf; $custom-dark: #000000;
JSON
{
"hex": "#1f738e",
"rgb": {
"r": 31,
"g": 115,
"b": 142
},
"hsl": {
"h": 194.595,
"s": 64.162,
"l": 33.922
},
"oklch": {
"l": 0.51925,
"c": 0.0873,
"h": 224.3
},
"luminance": 0.14506
}Semantic roles & 50–950 ramp
primary
#1F738E
secondary
#BB684D
accent
#6941E7
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#080E10
muted
#7B7E7F