#1F64BD#1F64BD
#1F64BD is a mid, vivid cyan. Relative luminance 0.131; OKLCH L 51.1% C 0.156 H 256.9°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).
Color values
| HEX | #1F64BD |
|---|---|
| RGB | rgb(31, 100, 189) |
| HSL | hsl(214, 72%, 43%) |
| HSV | hsv(214, 84%, 74%) |
| CMYK | cmyk(83.6%, 47.1%, 0%, 25.9%) |
| CIE-LAB | lab(42.88, 12.16, -52.68) |
| CIE-LCH | lch(42.88, 54.07, 283.00°) |
| OKLab | oklab(51.11% -0.0353 -0.1514) |
| OKLCH | oklch(51.11% 0.156 256.9) |
| XYZ | xyz(14.3041, 13.0780, 49.9046) |
| Luminance | 0.1308 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Denim
#1560BD
ΔE00 1.36
Mid Blue
#276AB3
ΔE00 2.57
French Blue
#436BAD
ΔE00 3.79
Medium Blue
#2C6FBB
ΔE00 3.92
Denim (survey)
#3B638C
ΔE00 5.39
Flat Blue
#3C73A8
ΔE00 5.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F64BD #BD781F
analogous
#1FB3BD #1F64BD #291FBD
triadic
#1F64BD #BD1F64 #64BD1F
tetradic
#1F64BD #BD1FB3 #BD781F #1FBD29
square
#1F64BD #BD1FB3 #BD781F #1FBD29
split-complementary
#1F64BD #BD291F #B3BD1F
monochromatic
#0E2C54 #164888 #1F64BD #3A82DF #6FA4E7
Accessibility & contrast
On white
5.81
#1F64BD on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.62
#1F64BD on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #1F64BD
5.81:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F64BD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F64BD | 1.00 | 5.81 | 3.62 | 5.81 |
| #FFFFFF | 5.81 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.81 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#326DC0
Deuteranopia (green-blind)
#005FBB
Tritanopia (blue-blind)
#007987
Achromatopsia (no color)
#656565
Design tokens & code
CSS
--color: #1f64bd; /* rgb */ color: rgb(31, 100, 189); /* oklch */ color: oklch(51.1% 0.156 256.9);
Tailwind
colors: {
custom: {
50: '#768fd1',
500: '#1f64bd',
950: '#000000',
},
}SCSS
$custom: #1f64bd; $custom-light: #768fd1; $custom-dark: #000000;
JSON
{
"hex": "#1f64bd",
"rgb": {
"r": 31,
"g": 100,
"b": 189
},
"hsl": {
"h": 213.797,
"s": 71.818,
"l": 43.137
},
"oklch": {
"l": 0.51112,
"c": 0.15551,
"h": 256.9
},
"luminance": 0.1308
}Semantic roles & 50–950 ramp
primary
#1F64BD
secondary
#CEA26A
accent
#9F39EF
background
#F7F8FC
surface
#EEF0F9
border
#C9CBD2
text
#0A0C14
muted
#7C7D82