#4037CC#4037CC
#4037CC is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.5% C 0.219 H 275.9°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).
Color values
| HEX | #4037CC |
|---|---|
| RGB | rgb(64, 55, 204) |
| HSL | hsl(244, 59%, 51%) |
| HSV | hsv(244, 73%, 80%) |
| CMYK | cmyk(68.6%, 73%, 0%, 20%) |
| CIE-LAB | lab(34.36, 49.35, -75.25) |
| CIE-LCH | lch(34.36, 89.98, 303.26°) |
| OKLab | oklab(45.53% 0.0226 -0.2175) |
| OKLCH | oklch(45.53% 0.219 275.9) |
| XYZ | xyz(14.3760, 8.1807, 57.9364) |
| Luminance | 0.0818 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue With A Hint Of Purple
#533CC6
ΔE00 2.55
Blurple
#5539CC
ΔE00 2.59
Ocean Blue
#4F42B5
ΔE00 4.27
Blue Blue
#2242C7
ΔE00 4.46
Bluey Purple
#6241C7
ΔE00 5.01
Blue (survey)
#0343DF
ΔE00 5.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4037CC #C3CC37
analogous
#3778CC #4037CC #8A37CC
triadic
#4037CC #CC4037 #37CC40
tetradic
#4037CC #CC3778 #C3CC37 #37CC8A
square
#4037CC #CC3778 #C3CC37 #37CC8A
split-complementary
#4037CC #CC8A37 #78CC37
monochromatic
#211C6D #2F289E #4037CC #6F68D8 #9D99E5
Accessibility & contrast
On white
7.97
#4037CC on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.64
#4037CC on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #4037CC
7.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4037CC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4037CC | 1.00 | 7.97 | 2.64 | 7.97 |
| #FFFFFF | 7.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.64 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0057D0
Deuteranopia (green-blind)
#004AC9
Tritanopia (blue-blind)
#00617E
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #4037cc; /* rgb */ color: rgb(64, 55, 204); /* oklch */ color: oklch(45.5% 0.219 275.9);
Tailwind
colors: {
custom: {
50: '#8870dd',
500: '#4037cc',
950: '#000000',
},
}SCSS
$custom: #4037cc; $custom-light: #8870dd; $custom-dark: #000000;
JSON
{
"hex": "#4037cc",
"rgb": {
"r": 64,
"g": 55,
"b": 204
},
"hsl": {
"h": 243.624,
"s": 59.363,
"l": 50.784
},
"oklch": {
"l": 0.45531,
"c": 0.21865,
"h": 275.9
},
"luminance": 0.08182
}Semantic roles & 50–950 ramp
primary
#4037CC
secondary
#CCD08E
accent
#E345D9
background
#F9F6FD
surface
#F1ECFB
border
#CBC7D4
text
#0D0815
muted
#7E7B83