#42437E#42437E
#42437E is a dark, moderate blue. Relative luminance 0.067; OKLCH L 41.2% C 0.097 H 280.5°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #42437E |
|---|---|
| RGB | rgb(66, 67, 126) |
| HSL | hsl(239, 31%, 38%) |
| HSV | hsv(239, 48%, 49%) |
| CMYK | cmyk(47.6%, 46.8%, 0%, 50.6%) |
| CIE-LAB | lab(31.06, 16.43, -33.67) |
| CIE-LCH | lch(31.06, 37.47, 296.01°) |
| OKLab | oklab(41.21% 0.0177 -0.0954) |
| OKLCH | oklch(41.21% 0.097 280.5) |
| XYZ | xyz(8.0187, 6.6785, 20.6012) |
| Luminance | 0.0668 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Darkslateblue
#483D8B
ΔE00 4.12
Twilight
#4E518B
ΔE00 4.64
Blueberry
#464196
ΔE00 4.84
Dusk
#4E5481
ΔE00 5.94
Cobalt (survey)
#1E488F
ΔE00 7.97
Darkish Blue
#014182
ΔE00 9.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#42437E #7E7D42
analogous
#42617E #42437E #5F427E
triadic
#42437E #7E4243 #437E42
tetradic
#42437E #7E4261 #7E7D42 #427E5F
square
#42437E #7E4261 #7E7D42 #427E5F
split-complementary
#42437E #7E5F42 #617E42
monochromatic
#18182E #2D2E56 #42437E #5758A6 #7F80BC
Accessibility & contrast
On white
8.99
#42437E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#42437E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #42437E
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##42437E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##42437E | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2B4B80
Deuteranopia (green-blind)
#28477D
Tritanopia (blue-blind)
#2E4F5A
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #42437e; /* rgb */ color: rgb(66, 67, 126); /* oklch */ color: oklch(41.2% 0.097 280.5);
Tailwind
colors: {
custom: {
50: '#7a77a4',
500: '#42437e',
950: '#000000',
},
}SCSS
$custom: #42437e; $custom-light: #7a77a4; $custom-dark: #000000;
JSON
{
"hex": "#42437e",
"rgb": {
"r": 66,
"g": 67,
"b": 126
},
"hsl": {
"h": 239,
"s": 31.25,
"l": 37.647
},
"oklch": {
"l": 0.4121,
"c": 0.09705,
"h": 280.5
},
"luminance": 0.06679
}Semantic roles & 50–950 ramp
primary
#42437E
secondary
#A7A675
accent
#C660C7
background
#F7F7FA
surface
#EEEDF4
border
#C9C8CE
text
#09080F
muted
#7B7B7F