#2F3BB5#2F3BB5
#2F3BB5 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.190 H 271.2°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).
Color values
| HEX | #2F3BB5 |
|---|---|
| RGB | rgb(47, 59, 181) |
| HSL | hsl(235, 59%, 45%) |
| HSV | hsv(235, 74%, 71%) |
| CMYK | cmyk(74%, 67.4%, 0%, 29%) |
| CIE-LAB | lab(31.96, 37.48, -65.72) |
| CIE-LCH | lch(31.96, 75.66, 299.70°) |
| OKLab | oklab(42.87% 0.0039 -0.1901) |
| OKLCH | oklch(42.87% 0.19 271.2) |
| XYZ | xyz(11.0739, 7.0673, 44.4876) |
| Luminance | 0.0707 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.10
Blue Blue
#2242C7
ΔE00 3.16
Ocean Blue
#4F42B5
ΔE00 4.29
Blue With A Hint Of Purple
#533CC6
ΔE00 5.31
Blue (survey)
#0343DF
ΔE00 5.72
Blueberry
#464196
ΔE00 5.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2F3BB5 #B5A92F
analogous
#2F7EB5 #2F3BB5 #662FB5
triadic
#2F3BB5 #B52F3B #3BB52F
tetradic
#2F3BB5 #B52F7E #B5A92F #2FB566
square
#2F3BB5 #B52F7E #B5A92F #2FB566
split-complementary
#2F3BB5 #B5662F #7EB52F
monochromatic
#161B54 #222B84 #2F3BB5 #505BD1 #8089DE
Accessibility & contrast
On white
8.70
#2F3BB5 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.41
#2F3BB5 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2F3BB5
8.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2F3BB5 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2F3BB5 | 1.00 | 8.70 | 2.41 | 8.70 |
| #FFFFFF | 8.70 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.41 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.70 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052B9
Deuteranopia (green-blind)
#0045B3
Tritanopia (blue-blind)
#005C73
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #2f3bb5; /* rgb */ color: rgb(47, 59, 181); /* oklch */ color: oklch(42.9% 0.190 271.2);
Tailwind
colors: {
custom: {
50: '#7c71cc',
500: '#2f3bb5',
950: '#000000',
},
}SCSS
$custom: #2f3bb5; $custom-light: #7c71cc; $custom-dark: #000000;
JSON
{
"hex": "#2f3bb5",
"rgb": {
"r": 47,
"g": 59,
"b": 181
},
"hsl": {
"h": 234.627,
"s": 58.772,
"l": 44.706
},
"oklch": {
"l": 0.42867,
"c": 0.19012,
"h": 271.2
},
"luminance": 0.07068
}Semantic roles & 50–950 ramp
primary
#2F3BB5
secondary
#C7C079
accent
#D446E2
background
#F8F6FC
surface
#EFECF9
border
#CAC7D2
text
#0B0714
muted
#7C7A82