#4243AB#4243AB
#4243AB is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.6% C 0.162 H 277.1°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).
Color values
| HEX | #4243AB |
|---|---|
| RGB | rgb(66, 67, 171) |
| HSL | hsl(239, 44%, 46%) |
| HSV | hsv(239, 61%, 67%) |
| CMYK | cmyk(61.4%, 60.8%, 0%, 32.9%) |
| CIE-LAB | lab(34.21, 31.59, -56.03) |
| CIE-LCH | lch(34.21, 64.32, 299.41°) |
| OKLab | oklab(44.57% 0.0202 -0.1611) |
| OKLCH | oklch(44.57% 0.162 277.1) |
| XYZ | xyz(11.6022, 8.1119, 39.4745) |
| Luminance | 0.0811 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ocean Blue
#4F42B5
ΔE00 2.69
Blueberry
#464196
ΔE00 3.48
Sapphire (survey)
#2138AB
ΔE00 4.35
Blue Blue
#2242C7
ΔE00 4.56
Blue With A Hint Of Purple
#533CC6
ΔE00 5.28
Darkslateblue
#483D8B
ΔE00 5.69
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4243AB #ABAA42
analogous
#4278AB #4243AB #7642AB
triadic
#4243AB #AB4243 #43AB42
tetradic
#4243AB #AB4278 #ABAA42 #42AB76
square
#4243AB #AB4278 #ABAA42 #42AB76
split-complementary
#4243AB #AB7642 #78AB42
monochromatic
#202053 #31327F #4243AB #6667C4 #9293D5
Accessibility & contrast
On white
8.01
#4243AB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.62
#4243AB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #4243AB
8.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4243AB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4243AB | 1.00 | 8.01 | 2.62 | 8.01 |
| #FFFFFF | 8.01 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.01 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0055AE
Deuteranopia (green-blind)
#004CA9
Tritanopia (blue-blind)
#005C70
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #4243ab; /* rgb */ color: rgb(66, 67, 171); /* oklch */ color: oklch(44.6% 0.162 277.1);
Tailwind
colors: {
custom: {
50: '#8177c5',
500: '#4243ab',
950: '#000000',
},
}SCSS
$custom: #4243ab; $custom-light: #8177c5; $custom-dark: #000000;
JSON
{
"hex": "#4243ab",
"rgb": {
"r": 66,
"g": 67,
"b": 171
},
"hsl": {
"h": 239.429,
"s": 44.304,
"l": 46.471
},
"oklch": {
"l": 0.44569,
"c": 0.1624,
"h": 277.1
},
"luminance": 0.08113
}Semantic roles & 50–950 ramp
primary
#4243AB
secondary
#C0C088
accent
#D354D4
background
#F8F7FC
surface
#F0EDF8
border
#CBC8D1
text
#0B0813
muted
#7C7B82