#4038B2#4038B2
#4038B2 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.2% C 0.185 H 278.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).
Color values
| HEX | #4038B2 |
|---|---|
| RGB | rgb(64, 56, 178) |
| HSL | hsl(244, 52%, 46%) |
| HSV | hsv(244, 69%, 70%) |
| CMYK | cmyk(64%, 68.5%, 0%, 30.2%) |
| CIE-LAB | lab(32.11, 40.39, -63.66) |
| CIE-LCH | lch(32.11, 75.39, 302.40°) |
| OKLab | oklab(43.18% 0.0264 -0.1836) |
| OKLCH | oklch(43.18% 0.186 278.2) |
| XYZ | xyz(11.5618, 7.1318, 42.8781) |
| Luminance | 0.0713 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ocean Blue
#4F42B5
ΔE00 3.21
Sapphire (survey)
#2138AB
ΔE00 3.74
Blue With A Hint Of Purple
#533CC6
ΔE00 3.99
Blurple
#5539CC
ΔE00 4.69
Blue Blue
#2242C7
ΔE00 4.91
Blueberry
#464196
ΔE00 5.33
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4038B2 #AAB238
analogous
#386DB2 #4038B2 #7D38B2
triadic
#4038B2 #B24038 #38B240
tetradic
#4038B2 #B2386D #AAB238 #38B27D
square
#4038B2 #B2386D #AAB238 #38B27D
split-complementary
#4038B2 #B27D38 #6DB238
monochromatic
#1F1B55 #2F2983 #4038B2 #635CCC #8F8ADA
Accessibility & contrast
On white
8.65
#4038B2 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.43
#4038B2 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #4038B2
8.65:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4038B2 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4038B2 | 1.00 | 8.65 | 2.43 | 8.65 |
| #FFFFFF | 8.65 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.65 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050B6
Deuteranopia (green-blind)
#0046B0
Tritanopia (blue-blind)
#005870
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #4038b2; /* rgb */ color: rgb(64, 56, 178); /* oklch */ color: oklch(43.2% 0.185 278.2);
Tailwind
colors: {
custom: {
50: '#8370ca',
500: '#4038b2',
950: '#000000',
},
}SCSS
$custom: #4038b2; $custom-light: #8370ca; $custom-dark: #000000;
JSON
{
"hex": "#4038b2",
"rgb": {
"r": 64,
"g": 56,
"b": 178
},
"hsl": {
"h": 243.934,
"s": 52.137,
"l": 45.882
},
"oklch": {
"l": 0.43177,
"c": 0.1855,
"h": 278.2
},
"luminance": 0.07133
}Semantic roles & 50–950 ramp
primary
#4038B2
secondary
#C0C581
accent
#DC4CD2
background
#F8F6FC
surface
#F0ECF9
border
#CBC7D2
text
#0C0713
muted
#7D7A82