#2B37BF#2B37BF
#2B37BF is a dark, highly saturated blue. Relative luminance 0.070; OKLCH L 43.0% C 0.208 H 270.2°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).
Color values
| HEX | #2B37BF |
|---|---|
| RGB | rgb(43, 55, 191) |
| HSL | hsl(235, 63%, 46%) |
| HSV | hsv(235, 77%, 75%) |
| CMYK | cmyk(77.5%, 71.2%, 0%, 25.1%) |
| CIE-LAB | lab(31.82, 43.05, -71.86) |
| CIE-LCH | lch(31.82, 83.77, 300.92°) |
| OKLab | oklab(43% 0.0007 -0.2081) |
| OKLCH | oklch(43% 0.208 270.2) |
| XYZ | xyz(11.7632, 7.0062, 50.0125) |
| Luminance | 0.0701 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 3.16
Blue Blue
#2242C7
ΔE00 3.36
Blue With A Hint Of Purple
#533CC6
ΔE00 4.85
Ocean Blue
#4F42B5
ΔE00 4.86
Blue (survey)
#0343DF
ΔE00 5.23
Blurple
#5539CC
ΔE00 5.30
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2B37BF #BFB32B
analogous
#2B81BF #2B37BF #692BBF
triadic
#2B37BF #BF2B37 #37BF2B
tetradic
#2B37BF #BF2B81 #BFB32B #2BBF69
square
#2B37BF #BF2B81 #BFB32B #2BBF69
split-complementary
#2B37BF #BF692B #81BF2B
monochromatic
#151A5B #20298D #2B37BF #505BD8 #828AE3
Accessibility & contrast
On white
8.74
#2B37BF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.40
#2B37BF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2B37BF
8.74:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2B37BF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2B37BF | 1.00 | 8.74 | 2.40 | 8.74 |
| #FFFFFF | 8.74 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.74 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052C3
Deuteranopia (green-blind)
#0044BD
Tritanopia (blue-blind)
#005D77
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #2b37bf; /* rgb */ color: rgb(43, 55, 191); /* oklch */ color: oklch(43.0% 0.208 270.2);
Tailwind
colors: {
custom: {
50: '#7d6fd4',
500: '#2b37bf',
950: '#000000',
},
}SCSS
$custom: #2b37bf; $custom-light: #7d6fd4; $custom-dark: #000000;
JSON
{
"hex": "#2b37bf",
"rgb": {
"r": 43,
"g": 55,
"b": 191
},
"hsl": {
"h": 235.135,
"s": 63.248,
"l": 45.882
},
"oklch": {
"l": 0.43003,
"c": 0.2081,
"h": 270.2
},
"luminance": 0.07008
}Semantic roles & 50–950 ramp
primary
#2B37BF
secondary
#CCC57A
accent
#D942E6
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83