#1F4798#1F4798
#1F4798 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 41.9% C 0.141 H 262.3°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).
Color values
| HEX | #1F4798 |
|---|---|
| RGB | rgb(31, 71, 152) |
| HSL | hsl(220, 66%, 36%) |
| HSV | hsv(220, 80%, 60%) |
| CMYK | cmyk(79.6%, 53.3%, 0%, 40.4%) |
| CIE-LAB | lab(31.95, 16.77, -48.35) |
| CIE-LCH | lch(31.95, 51.18, 289.12°) |
| OKLab | oklab(41.92% -0.0187 -0.1393) |
| OKLCH | oklch(41.92% 0.141 262.3) |
| XYZ | xyz(8.4838, 7.0638, 30.6160) |
| Luminance | 0.0707 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.56
Cobalt
#0047AB
ΔE00 2.59
Darkish Blue
#014182
ΔE00 4.19
Dusk Blue
#26538D
ΔE00 4.74
Twilight Blue
#0A437A
ΔE00 5.03
Sapphire
#0F52BA
ΔE00 5.37
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F4798 #98701F
analogous
#1F8398 #1F4798 #331F98
triadic
#1F4798 #981F47 #47981F
tetradic
#1F4798 #981F83 #98701F #1F9833
square
#1F4798 #981F83 #98701F #1F9833
split-complementary
#1F4798 #98331F #83981F
monochromatic
#0A1832 #152F65 #1F4798 #295FCB #5582DC
Accessibility & contrast
On white
8.70
#1F4798 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.41
#1F4798 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F4798
8.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F4798 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F4798 | 1.00 | 8.70 | 2.41 | 8.70 |
| #FFFFFF | 8.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.41 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0D519B
Deuteranopia (green-blind)
#004696
Tritanopia (blue-blind)
#005B68
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #1f4798; /* rgb */ color: rgb(31, 71, 152); /* oklch */ color: oklch(41.9% 0.141 262.3);
Tailwind
colors: {
custom: {
50: '#6e79b7',
500: '#1f4798',
950: '#000000',
},
}SCSS
$custom: #1f4798; $custom-light: #6e79b7; $custom-dark: #000000;
JSON
{
"hex": "#1f4798",
"rgb": {
"r": 31,
"g": 71,
"b": 152
},
"hsl": {
"h": 220.165,
"s": 66.12,
"l": 35.882
},
"oklch": {
"l": 0.41915,
"c": 0.14054,
"h": 262.3
},
"luminance": 0.07065
}Semantic roles & 50–950 ramp
primary
#1F4798
secondary
#C09C53
accent
#B13FE9
background
#F7F7FB
surface
#EDEDF6
border
#C8C8D0
text
#080911
muted
#7B7B80