#1F5781#1F5781
#1F5781 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.1% C 0.090 H 244.8°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).
Color values
| HEX | #1F5781 |
|---|---|
| RGB | rgb(31, 87, 129) |
| HSL | hsl(206, 61%, 31%) |
| HSV | hsv(206, 76%, 51%) |
| CMYK | cmyk(76%, 32.6%, 0%, 49.4%) |
| CIE-LAB | lab(35.38, -2.96, -28.81) |
| CIE-LCH | lch(35.38, 28.96, 264.13°) |
| OKLab | oklab(44.11% -0.0384 -0.0816) |
| OKLCH | oklch(44.11% 0.09 244.8) |
| XYZ | xyz(7.9342, 8.6918, 22.0241) |
| Luminance | 0.0869 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.81
Light Navy Blue
#2E5A88
ΔE00 2.74
Light Navy
#155084
ΔE00 3.00
Dusk Blue
#26538D
ΔE00 4.11
Denim (survey)
#3B638C
ΔE00 5.05
Ugly Blue
#31668A
ΔE00 5.46
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F5781 #81491F
analogous
#1F817A #1F5781 #1F2681
triadic
#1F5781 #811F57 #57811F
tetradic
#1F5781 #7A1F81 #81491F #26811F
square
#1F5781 #7A1F81 #81491F #26811F
split-complementary
#1F5781 #811F26 #817A1F
monochromatic
#07141E #133650 #1F5781 #2B78B2 #4797D3
Accessibility & contrast
On white
7.67
#1F5781 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.74
#1F5781 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F5781
7.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F5781 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F5781 | 1.00 | 7.67 | 2.74 | 7.67 |
| #FFFFFF | 7.67 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.74 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.67 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#445883
Deuteranopia (green-blind)
#364F80
Tritanopia (blue-blind)
#006166
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #1f5781; /* rgb */ color: rgb(31, 87, 129); /* oklch */ color: oklch(44.1% 0.090 244.8);
Tailwind
colors: {
custom: {
50: '#6986a6',
500: '#1f5781',
950: '#000000',
},
}SCSS
$custom: #1f5781; $custom-light: #6986a6; $custom-dark: #000000;
JSON
{
"hex": "#1f5781",
"rgb": {
"r": 31,
"g": 87,
"b": 129
},
"hsl": {
"h": 205.714,
"s": 61.25,
"l": 31.373
},
"oklch": {
"l": 0.44111,
"c": 0.09021,
"h": 244.8
},
"luminance": 0.08693
}Semantic roles & 50–950 ramp
primary
#1F5781
secondary
#B47648
accent
#8843E4
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B0F
muted
#7A7C7F