#1F247F#1F247F
#1F247F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.6% C 0.150 H 272.2°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1F247F |
|---|---|
| RGB | rgb(31, 36, 127) |
| HSL | hsl(237, 61%, 31%) |
| HSV | hsv(237, 76%, 50%) |
| CMYK | cmyk(75.6%, 71.7%, 0%, 50.2%) |
| CIE-LAB | lab(20.38, 30.85, -51.73) |
| CIE-LCH | lch(20.38, 60.23, 300.81°) |
| OKLab | oklab(32.64% 0.0057 -0.1496) |
| OKLCH | oklch(32.64% 0.15 272.2) |
| XYZ | xyz(5.0254, 3.0848, 20.4051) |
| Luminance | 0.0308 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 3.40
Royal
#0C1793
ΔE00 4.59
Dark Royal Blue
#02066F
ΔE00 6.99
Darkblue
#00008B
ΔE00 7.30
Navy
#000080
ΔE00 7.38
Deep Blue
#040273
ΔE00 7.44
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F247F #7F7A1F
analogous
#1F547F #1F247F #4A1F7F
triadic
#1F247F #7F1F24 #247F1F
tetradic
#1F247F #7F1F54 #7F7A1F #1F7F4A
square
#1F247F #7F1F54 #7F7A1F #1F7F4A
split-complementary
#1F247F #7F4A1F #547F1F
monochromatic
#07081D #13164E #1F247F #2B32B0 #464ED2
Accessibility & contrast
On white
12.99
#1F247F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.62
#1F247F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F247F
12.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F247F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F247F | 1.00 | 12.99 | 1.62 | 12.99 |
| #FFFFFF | 12.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003682
Deuteranopia (green-blind)
#002D7D
Tritanopia (blue-blind)
#003D4E
Achromatopsia (no color)
#313131
Design tokens & code
CSS
--color: #1f247f; /* rgb */ color: rgb(31, 36, 127); /* oklch */ color: oklch(32.6% 0.150 272.2);
Tailwind
colors: {
custom: {
50: '#6b5fa5',
500: '#1f247f',
950: '#000000',
},
}SCSS
$custom: #1f247f; $custom-light: #6b5fa5; $custom-dark: #000000;
JSON
{
"hex": "#1f247f",
"rgb": {
"r": 31,
"g": 36,
"b": 127
},
"hsl": {
"h": 236.875,
"s": 60.759,
"l": 30.98
},
"oklch": {
"l": 0.32638,
"c": 0.14973,
"h": 272.2
},
"luminance": 0.03085
}Semantic roles & 50–950 ramp
primary
#1F247F
secondary
#B2AC48
accent
#DC44E4
background
#F6F5FA
surface
#ECE9F4
border
#C7C5CE
text
#08040F
muted
#7A797F