#1F4E94#1F4E94
#1F4E94 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.2% C 0.126 H 258.5°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).
Color values
| HEX | #1F4E94 |
|---|---|
| RGB | rgb(31, 78, 148) |
| HSL | hsl(216, 65%, 35%) |
| HSV | hsv(216, 79%, 58%) |
| CMYK | cmyk(79.1%, 47.3%, 0%, 42%) |
| CIE-LAB | lab(33.73, 10.42, -43.06) |
| CIE-LCH | lch(33.73, 44.30, 283.60°) |
| OKLab | oklab(43.18% -0.025 -0.1236) |
| OKLCH | oklch(43.18% 0.126 258.5) |
| XYZ | xyz(8.6328, 7.8772, 29.0767) |
| Luminance | 0.0788 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dusk Blue
#26538D
ΔE00 2.03
Cobalt (survey)
#1E488F
ΔE00 2.09
Light Navy
#155084
ΔE00 3.52
Cobalt
#0047AB
ΔE00 4.00
Darkish Blue
#014182
ΔE00 4.61
Light Navy Blue
#2E5A88
ΔE00 4.61
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F4E94 #94651F
analogous
#1F8994 #1F4E94 #2A1F94
triadic
#1F4E94 #941F4E #4E941F
tetradic
#1F4E94 #941F89 #94651F #1F942A
square
#1F4E94 #941F89 #94651F #1F942A
split-complementary
#1F4E94 #942A1F #89941F
monochromatic
#0A192F #143361 #1F4E94 #2A69C7 #5389DB
Accessibility & contrast
On white
8.15
#1F4E94 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.58
#1F4E94 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F4E94
8.15:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F4E94 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F4E94 | 1.00 | 8.15 | 2.58 | 8.15 |
| #FFFFFF | 8.15 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.58 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.15 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#285597
Deuteranopia (green-blind)
#0A4A93
Tritanopia (blue-blind)
#005F6A
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1f4e94; /* rgb */ color: rgb(31, 78, 148); /* oklch */ color: oklch(43.2% 0.126 258.5);
Tailwind
colors: {
custom: {
50: '#6d7fb4',
500: '#1f4e94',
950: '#000000',
},
}SCSS
$custom: #1f4e94; $custom-light: #6d7fb4; $custom-dark: #000000;
JSON
{
"hex": "#1f4e94",
"rgb": {
"r": 31,
"g": 78,
"b": 148
},
"hsl": {
"h": 215.897,
"s": 65.363,
"l": 35.098
},
"oklch": {
"l": 0.43184,
"c": 0.12608,
"h": 258.5
},
"luminance": 0.07878
}Semantic roles & 50–950 ramp
primary
#1F4E94
secondary
#BE9251
accent
#A43FE8
background
#F7F7FB
surface
#EDEEF6
border
#C8C9D0
text
#080A11
muted
#7B7C80