#1F2A87#1F2A87
#1F2A87 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.5% C 0.153 H 270.5°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).
Color values
| HEX | #1F2A87 |
|---|---|
| RGB | rgb(31, 42, 135) |
| HSL | hsl(234, 63%, 33%) |
| HSV | hsv(234, 77%, 53%) |
| CMYK | cmyk(77%, 68.9%, 0%, 47.1%) |
| CIE-LAB | lab(22.64, 29.90, -53.05) |
| CIE-LCH | lch(22.64, 60.90, 299.40°) |
| OKLab | oklab(34.52% 0.0012 -0.1535) |
| OKLCH | oklch(34.52% 0.153 270.5) |
| XYZ | xyz(5.7647, 3.6959, 23.3265) |
| Luminance | 0.0370 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal
#0C1793
ΔE00 5.26
Midnight Blue
#191970
ΔE00 5.33
Sapphire (survey)
#2138AB
ΔE00 6.12
Darkslateblue
#483D8B
ΔE00 7.38
Blueberry
#464196
ΔE00 7.72
Cobalt Blue
#030AA7
ΔE00 7.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F2A87 #877C1F
analogous
#1F5E87 #1F2A87 #481F87
triadic
#1F2A87 #871F2A #2A871F
tetradic
#1F2A87 #871F5E #877C1F #1F8748
square
#1F2A87 #871F5E #877C1F #1F8748
split-complementary
#1F2A87 #87481F #5E871F
monochromatic
#080B23 #141B55 #1F2A87 #2A39B9 #4B59D6
Accessibility & contrast
On white
12.07
#1F2A87 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.74
#1F2A87 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F2A87
12.07:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F2A87 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F2A87 | 1.00 | 12.07 | 1.74 | 12.07 |
| #FFFFFF | 12.07 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.74 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.07 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003B8A
Deuteranopia (green-blind)
#003185
Tritanopia (blue-blind)
#004354
Achromatopsia (no color)
#363636
Design tokens & code
CSS
--color: #1f2a87; /* rgb */ color: rgb(31, 42, 135); /* oklch */ color: oklch(34.5% 0.153 270.5);
Tailwind
colors: {
custom: {
50: '#6c63ab',
500: '#1f2a87',
950: '#000000',
},
}SCSS
$custom: #1f2a87; $custom-light: #6c63ab; $custom-dark: #000000;
JSON
{
"hex": "#1f2a87",
"rgb": {
"r": 31,
"g": 42,
"b": 135
},
"hsl": {
"h": 233.654,
"s": 62.651,
"l": 32.549
},
"oklch": {
"l": 0.34518,
"c": 0.15348,
"h": 270.5
},
"luminance": 0.03697
}Semantic roles & 50–950 ramp
primary
#1F2A87
secondary
#B8AD4A
accent
#D442E6
background
#F7F5FA
surface
#EDEAF4
border
#C8C6CE
text
#080510
muted
#7B797F