#1D4BA8#1D4BA8
#1D4BA8 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.0% C 0.158 H 262.2°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).
Color values
| HEX | #1D4BA8 |
|---|---|
| RGB | rgb(29, 75, 168) |
| HSL | hsl(220, 71%, 39%) |
| HSV | hsv(220, 83%, 66%) |
| CMYK | cmyk(82.7%, 55.4%, 0%, 34.1%) |
| CIE-LAB | lab(34.23, 20.22, -54.30) |
| CIE-LCH | lch(34.23, 57.94, 290.43°) |
| OKLab | oklab(44.01% -0.0213 -0.1567) |
| OKLCH | oklch(44.01% 0.158 262.2) |
| XYZ | xyz(10.0881, 8.1193, 38.0737) |
| Luminance | 0.0812 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 1.53
Sapphire
#0F52BA
ΔE00 3.14
Cobalt (survey)
#1E488F
ΔE00 3.47
Dusk Blue
#26538D
ΔE00 4.86
Blue Blue
#2242C7
ΔE00 5.94
Darkish Blue
#014182
ΔE00 6.16
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D4BA8 #A87A1D
analogous
#1D90A8 #1D4BA8 #341DA8
triadic
#1D4BA8 #A81D4B #4BA81D
tetradic
#1D4BA8 #A81D90 #A87A1D #1DA834
square
#1D4BA8 #A81D90 #A87A1D #1DA834
split-complementary
#1D4BA8 #A8341D #90A81D
monochromatic
#0B1C40 #143474 #1D4BA8 #2863DA #5C89E3
Accessibility & contrast
On white
8.00
#1D4BA8 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.62
#1D4BA8 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D4BA8
8.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D4BA8 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D4BA8 | 1.00 | 8.00 | 2.62 | 8.00 |
| #FFFFFF | 8.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0057AB
Deuteranopia (green-blind)
#004AA6
Tritanopia (blue-blind)
#006272
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #1d4ba8; /* rgb */ color: rgb(29, 75, 168); /* oklch */ color: oklch(44.0% 0.158 262.2);
Tailwind
colors: {
custom: {
50: '#727cc3',
500: '#1d4ba8',
950: '#000000',
},
}SCSS
$custom: #1d4ba8; $custom-light: #727cc3; $custom-dark: #000000;
JSON
{
"hex": "#1d4ba8",
"rgb": {
"r": 29,
"g": 75,
"b": 168
},
"hsl": {
"h": 220.144,
"s": 70.558,
"l": 38.627
},
"oklch": {
"l": 0.44007,
"c": 0.15818,
"h": 262.2
},
"luminance": 0.08121
}Semantic roles & 50–950 ramp
primary
#1D4BA8
secondary
#C7A35A
accent
#B23AED
background
#F7F7FC
surface
#EDEEF8
border
#C8C9D1
text
#090912
muted
#7B7B81