#4037AF#4037AF
#4037AF is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.7% C 0.183 H 278.7°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).
Color values
| HEX | #4037AF |
|---|---|
| RGB | rgb(64, 55, 175) |
| HSL | hsl(245, 52%, 45%) |
| HSV | hsv(245, 69%, 69%) |
| CMYK | cmyk(63.4%, 68.6%, 0%, 31.4%) |
| CIE-LAB | lab(31.62, 40.00, -62.67) |
| CIE-LCH | lch(31.62, 74.35, 302.55°) |
| OKLab | oklab(42.74% 0.0275 -0.1807) |
| OKLCH | oklch(42.74% 0.183 278.7) |
| XYZ | xyz(11.2159, 6.9166, 41.2931) |
| Luminance | 0.0692 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ocean Blue
#4F42B5
ΔE00 3.49
Sapphire (survey)
#2138AB
ΔE00 3.70
Blue With A Hint Of Purple
#533CC6
ΔE00 4.36
Blurple
#5539CC
ΔE00 5.04
Blueberry
#464196
ΔE00 5.15
Blue Blue
#2242C7
ΔE00 5.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4037AF #A6AF37
analogous
#376AAF #4037AF #7C37AF
triadic
#4037AF #AF4037 #37AF40
tetradic
#4037AF #AF376A #A6AF37 #37AF7C
square
#4037AF #AF376A #A6AF37 #37AF7C
split-complementary
#4037AF #AF7C37 #6AAF37
monochromatic
#1E1A52 #2F2880 #4037AF #6159CB #8D87D9
Accessibility & contrast
On white
8.81
#4037AF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#4037AF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #4037AF
8.81:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4037AF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4037AF | 1.00 | 8.81 | 2.38 | 8.81 |
| #FFFFFF | 8.81 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.81 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FB3
Deuteranopia (green-blind)
#0046AD
Tritanopia (blue-blind)
#00576E
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #4037af; /* rgb */ color: rgb(64, 55, 175); /* oklch */ color: oklch(42.7% 0.183 278.7);
Tailwind
colors: {
custom: {
50: '#826fc8',
500: '#4037af',
950: '#000000',
},
}SCSS
$custom: #4037af; $custom-light: #826fc8; $custom-dark: #000000;
JSON
{
"hex": "#4037af",
"rgb": {
"r": 64,
"g": 55,
"b": 175
},
"hsl": {
"h": 244.5,
"s": 52.174,
"l": 45.098
},
"oklch": {
"l": 0.42742,
"c": 0.18282,
"h": 278.7
},
"luminance": 0.06918
}Semantic roles & 50–950 ramp
primary
#4037AF
secondary
#BEC37F
accent
#DC4CD1
background
#F8F6FC
surface
#F0ECF8
border
#CBC7D1
text
#0C0713
muted
#7D7A82