#184BB4#184BB4
#184BB4 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.175 H 262.4°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).
Color values
| HEX | #184BB4 |
|---|---|
| RGB | rgb(24, 75, 180) |
| HSL | hsl(220, 76%, 40%) |
| HSV | hsv(220, 87%, 71%) |
| CMYK | cmyk(86.7%, 58.3%, 0%, 29.4%) |
| CIE-LAB | lab(35.04, 24.59, -60.11) |
| CIE-LCH | lch(35.04, 64.95, 292.25°) |
| OKLab | oklab(44.88% -0.0233 -0.1739) |
| OKLCH | oklch(44.88% 0.175 262.4) |
| XYZ | xyz(11.1280, 8.5202, 44.2292) |
| Luminance | 0.0852 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 1.97
Sapphire
#0F52BA
ΔE00 2.56
Blue Blue
#2242C7
ΔE00 4.65
Cobalt (survey)
#1E488F
ΔE00 5.03
Dusk Blue
#26538D
ΔE00 6.04
Sapphire (survey)
#2138AB
ΔE00 6.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#184BB4 #B48118
analogous
#1899B4 #184BB4 #3318B4
triadic
#184BB4 #B4184B #4BB418
tetradic
#184BB4 #B41899 #B48118 #18B433
square
#184BB4 #B41899 #B48118 #18B433
split-complementary
#184BB4 #B43318 #99B418
monochromatic
#0A1E48 #11347E #184BB4 #2764E2 #5D8BE9
Accessibility & contrast
On white
7.77
#184BB4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.70
#184BB4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #184BB4
7.77:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##184BB4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##184BB4 | 1.00 | 7.77 | 2.70 | 7.77 |
| #FFFFFF | 7.77 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.77 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#005AB8
Deuteranopia (green-blind)
#004CB2
Tritanopia (blue-blind)
#006678
Achromatopsia (no color)
#525252
Design tokens & code
CSS
--color: #184bb4; /* rgb */ color: rgb(24, 75, 180); /* oklch */ color: oklch(44.9% 0.175 262.4);
Tailwind
colors: {
custom: {
50: '#747ccb',
500: '#184bb4',
950: '#000000',
},
}SCSS
$custom: #184bb4; $custom-light: #747ccb; $custom-dark: #000000;
JSON
{
"hex": "#184bb4",
"rgb": {
"r": 24,
"g": 75,
"b": 180
},
"hsl": {
"h": 220.385,
"s": 76.471,
"l": 40
},
"oklch": {
"l": 0.4488,
"c": 0.17543,
"h": 262.4
},
"luminance": 0.08522
}Semantic roles & 50–950 ramp
primary
#184BB4
secondary
#CDA85B
accent
#B535F3
background
#F7F7FC
surface
#EEEEF9
border
#C9C9D2
text
#0A0913
muted
#7C7B82