#3738AF#3738AF
#3738AF is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.3% C 0.184 H 274.8°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).
Color values
| HEX | #3738AF |
|---|---|
| RGB | rgb(55, 56, 175) |
| HSL | hsl(240, 52%, 45%) |
| HSV | hsv(240, 69%, 69%) |
| CMYK | cmyk(68.6%, 68%, 0%, 31.4%) |
| CIE-LAB | lab(31.20, 38.19, -63.39) |
| CIE-LCH | lch(31.20, 74.00, 301.07°) |
| OKLab | oklab(42.27% 0.0155 -0.1831) |
| OKLCH | oklch(42.27% 0.184 274.8) |
| XYZ | xyz(10.7250, 6.7347, 41.2839) |
| Luminance | 0.0674 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.46
Ocean Blue
#4F42B5
ΔE00 4.04
Blue Blue
#2242C7
ΔE00 4.56
Blue With A Hint Of Purple
#533CC6
ΔE00 5.11
Blueberry
#464196
ΔE00 5.19
Blurple
#5539CC
ΔE00 5.81
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3738AF #AFAE37
analogous
#3774AF #3738AF #7237AF
triadic
#3738AF #AF3738 #38AF37
tetradic
#3738AF #AF3774 #AFAE37 #37AF72
square
#3738AF #AF3774 #AFAE37 #37AF72
split-complementary
#3738AF #AF7237 #74AF37
monochromatic
#1A1A52 #282980 #3738AF #5959CB #8788D9
Accessibility & contrast
On white
8.95
#3738AF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.35
#3738AF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3738AF
8.95:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3738AF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3738AF | 1.00 | 8.95 | 2.35 | 8.95 |
| #FFFFFF | 8.95 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.35 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.95 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FB3
Deuteranopia (green-blind)
#0044AD
Tritanopia (blue-blind)
#00586F
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #3738af; /* rgb */ color: rgb(55, 56, 175); /* oklch */ color: oklch(42.3% 0.184 274.8);
Tailwind
colors: {
custom: {
50: '#7e6fc8',
500: '#3738af',
950: '#000000',
},
}SCSS
$custom: #3738af; $custom-light: #7e6fc8; $custom-dark: #000000;
JSON
{
"hex": "#3738af",
"rgb": {
"r": 55,
"g": 56,
"b": 175
},
"hsl": {
"h": 239.5,
"s": 52.174,
"l": 45.098
},
"oklch": {
"l": 0.42271,
"c": 0.18372,
"h": 274.8
},
"luminance": 0.06736
}Semantic roles & 50–950 ramp
primary
#3738AF
secondary
#C3C37F
accent
#DA4CDC
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82