#1D48BB#1D48BB
#1D48BB is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.0% C 0.187 H 264.3°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).
Color values
| HEX | #1D48BB |
|---|---|
| RGB | rgb(29, 72, 187) |
| HSL | hsl(224, 73%, 42%) |
| HSV | hsv(224, 84%, 73%) |
| CMYK | cmyk(84.5%, 61.5%, 0%, 26.7%) |
| CIE-LAB | lab(34.97, 29.68, -64.36) |
| CIE-LCH | lch(34.97, 70.87, 294.75°) |
| OKLab | oklab(45.04% -0.0186 -0.1863) |
| OKLCH | oklch(45.04% 0.187 264.3) |
| XYZ | xyz(11.7905, 8.4823, 48.0199) |
| Luminance | 0.0848 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 2.87
Cobalt
#0047AB
ΔE00 3.09
Sapphire
#0F52BA
ΔE00 3.89
Blue (survey)
#0343DF
ΔE00 4.82
Sapphire (survey)
#2138AB
ΔE00 5.22
Cobalt (survey)
#1E488F
ΔE00 6.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D48BB #BB901D
analogous
#1D97BB #1D48BB #411DBB
triadic
#1D48BB #BB1D48 #48BB1D
tetradic
#1D48BB #BB1D97 #BB901D #1DBB41
square
#1D48BB #BB1D97 #BB901D #1DBB41
split-complementary
#1D48BB #BB411D #97BB1D
monochromatic
#0D1F51 #153486 #1D48BB #3564E0 #6A8DE8
Accessibility & contrast
On white
7.79
#1D48BB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.70
#1D48BB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D48BB
7.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D48BB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D48BB | 1.00 | 7.79 | 2.70 | 7.79 |
| #FFFFFF | 7.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005ABF
Deuteranopia (green-blind)
#004BB9
Tritanopia (blue-blind)
#00667A
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #1d48bb; /* rgb */ color: rgb(29, 72, 187); /* oklch */ color: oklch(45.0% 0.187 264.3);
Tailwind
colors: {
custom: {
50: '#777ad0',
500: '#1d48bb',
950: '#000000',
},
}SCSS
$custom: #1d48bb; $custom-light: #777ad0; $custom-dark: #000000;
JSON
{
"hex": "#1d48bb",
"rgb": {
"r": 29,
"g": 72,
"b": 187
},
"hsl": {
"h": 223.671,
"s": 73.148,
"l": 42.353
},
"oklch": {
"l": 0.45043,
"c": 0.18723,
"h": 264.3
},
"luminance": 0.08484
}Semantic roles & 50–950 ramp
primary
#1D48BB
secondary
#CEB166
accent
#BE38F0
background
#F8F7FC
surface
#EFEDF9
border
#CAC8D2
text
#0A0914
muted
#7C7B82