#2733B1#2733B1
#2733B1 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.7% C 0.196 H 270.1°. Best body text is #FFFFFF at 9.57:1 contrast (WCAG AA passes).
Color values
| HEX | #2733B1 |
|---|---|
| RGB | rgb(39, 51, 177) |
| HSL | hsl(235, 64%, 42%) |
| HSV | hsv(235, 78%, 69%) |
| CMYK | cmyk(78%, 71.2%, 0%, 30.6%) |
| CIE-LAB | lab(29.34, 40.24, -67.66) |
| CIE-LCH | lch(29.34, 78.72, 300.74°) |
| OKLab | oklab(40.74% 0.0003 -0.1959) |
| OKLCH | oklch(40.74% 0.196 270.1) |
| XYZ | xyz(9.9536, 5.9722, 42.2146) |
| Luminance | 0.0597 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.00
Blue Blue
#2242C7
ΔE00 5.01
Ocean Blue
#4F42B5
ΔE00 5.83
Indigo Blue
#3A18B1
ΔE00 6.06
Blue With A Hint Of Purple
#533CC6
ΔE00 6.37
Blueberry
#464196
ΔE00 6.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2733B1 #B1A527
analogous
#2778B1 #2733B1 #6027B1
triadic
#2733B1 #B12733 #33B127
tetradic
#2733B1 #B12778 #B1A527 #27B160
square
#2733B1 #B12778 #B1A527 #27B160
split-complementary
#2733B1 #B16027 #78B127
monochromatic
#11164D #1C257F #2733B1 #404DD5 #727CE0
Accessibility & contrast
On white
9.57
#2733B1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.19
#2733B1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2733B1
9.57:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2733B1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2733B1 | 1.00 | 9.57 | 2.19 | 9.57 |
| #FFFFFF | 9.57 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.19 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.57 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004CB5
Deuteranopia (green-blind)
#003EAF
Tritanopia (blue-blind)
#00566E
Achromatopsia (no color)
#454545
Design tokens & code
CSS
--color: #2733b1; /* rgb */ color: rgb(39, 51, 177); /* oklch */ color: oklch(40.7% 0.196 270.1);
Tailwind
colors: {
custom: {
50: '#796bca',
500: '#2733b1',
950: '#000000',
},
}SCSS
$custom: #2733b1; $custom-light: #796bca; $custom-dark: #000000;
JSON
{
"hex": "#2733b1",
"rgb": {
"r": 39,
"g": 51,
"b": 177
},
"hsl": {
"h": 234.783,
"s": 63.889,
"l": 42.353
},
"oklch": {
"l": 0.40745,
"c": 0.19592,
"h": 270.1
},
"luminance": 0.05973
}Semantic roles & 50–950 ramp
primary
#2733B1
secondary
#C7BF6D
accent
#D841E7
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0713
muted
#7C7A82