#3F4E73#3F4E73
#3F4E73 is a dark, moderate blue. Relative luminance 0.077; OKLCH L 42.8% C 0.065 H 266.8°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).
Color values
| HEX | #3F4E73 |
|---|---|
| RGB | rgb(63, 78, 115) |
| HSL | hsl(223, 29%, 35%) |
| HSV | hsv(223, 45%, 45%) |
| CMYK | cmyk(45.2%, 32.2%, 0%, 54.9%) |
| CIE-LAB | lab(33.44, 4.80, -23.07) |
| CIE-LCH | lch(33.44, 23.57, 281.75°) |
| OKLab | oklab(42.78% -0.0036 -0.0646) |
| OKLCH | oklch(42.78% 0.065 266.8) |
| XYZ | xyz(7.8678, 7.7429, 17.2963) |
| Luminance | 0.0774 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dusk
#4E5481
ΔE00 4.32
Twilight
#4E518B
ΔE00 5.56
Denim Blue
#3B5B92
ΔE00 6.89
Dusk Blue
#26538D
ΔE00 7.09
Dusky Blue
#475F94
ΔE00 7.26
Cobalt (survey)
#1E488F
ΔE00 7.29
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F4E73 #73643F
analogous
#3F6873 #3F4E73 #4A3F73
triadic
#3F4E73 #733F4E #4E733F
tetradic
#3F4E73 #733F68 #73643F #3F734A
square
#3F4E73 #733F68 #73643F #3F734A
split-complementary
#3F4E73 #734A3F #68733F
monochromatic
#141824 #29334B #3F4E73 #55699B #7889B5
Accessibility & contrast
On white
8.24
#3F4E73 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.55
#3F4E73 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3F4E73
8.24:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F4E73 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3F4E73 | 1.00 | 8.24 | 2.55 | 8.24 |
| #FFFFFF | 8.24 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.24 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#415175
Deuteranopia (green-blind)
#3C4D72
Tritanopia (blue-blind)
#2D565B
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #3f4e73; /* rgb */ color: rgb(63, 78, 115); /* oklch */ color: oklch(42.8% 0.065 266.8);
Tailwind
colors: {
custom: {
50: '#777f9b',
500: '#3f4e73',
950: '#000000',
},
}SCSS
$custom: #3f4e73; $custom-light: #777f9b; $custom-dark: #000000;
JSON
{
"hex": "#3f4e73",
"rgb": {
"r": 63,
"g": 78,
"b": 115
},
"hsl": {
"h": 222.692,
"s": 29.213,
"l": 34.902
},
"oklch": {
"l": 0.42782,
"c": 0.06467,
"h": 266.8
},
"luminance": 0.07743
}Semantic roles & 50–950 ramp
primary
#3F4E73
secondary
#9F916E
accent
#A962C5
background
#F7F7F9
surface
#EDEEF2
border
#C8C9CC
text
#090A0E
muted
#7B7C7E