#2128BD#2128BD
#2128BD is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.2% C 0.222 H 269.0°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).
Color values
| HEX | #2128BD |
|---|---|
| RGB | rgb(33, 40, 189) |
| HSL | hsl(237, 70%, 44%) |
| HSV | hsv(237, 83%, 74%) |
| CMYK | cmyk(82.5%, 78.8%, 0%, 25.9%) |
| CIE-LAB | lab(28.15, 50.12, -76.77) |
| CIE-LCH | lch(28.15, 91.68, 303.14°) |
| OKLab | oklab(40.2% -0.0037 -0.2224) |
| OKLCH | oklch(40.2% 0.222 269) |
| XYZ | xyz(10.5682, 5.5138, 48.6415) |
| Luminance | 0.0551 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
True Blue
#010FCC
ΔE00 3.85
Indigo Blue
#3A18B1
ΔE00 3.90
Ultramarine Blue
#1805DB
ΔE00 4.85
Mediumblue
#0000CD
ΔE00 4.89
Sapphire (survey)
#2138AB
ΔE00 4.91
Pure Blue
#0203E2
ΔE00 5.26
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2128BD #BDB621
analogous
#2176BD #2128BD #6821BD
triadic
#2128BD #BD2128 #28BD21
tetradic
#2128BD #BD2176 #BDB621 #21BD68
square
#2128BD #BD2176 #BDB621 #21BD68
split-complementary
#2128BD #BD6821 #76BD21
monochromatic
#0F1255 #181D89 #2128BD #3E45DD #7277E6
Accessibility & contrast
On white
9.99
#2128BD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.10
#2128BD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2128BD
9.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2128BD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2128BD | 1.00 | 9.99 | 2.10 | 9.99 |
| #FFFFFF | 9.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.10 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004AC1
Deuteranopia (green-blind)
#003ABA
Tritanopia (blue-blind)
#005672
Achromatopsia (no color)
#424242
Design tokens & code
CSS
--color: #2128bd; /* rgb */ color: rgb(33, 40, 189); /* oklch */ color: oklch(40.2% 0.222 269.0);
Tailwind
colors: {
custom: {
50: '#7b65d2',
500: '#2128bd',
950: '#000000',
},
}SCSS
$custom: #2128bd; $custom-light: #7b65d2; $custom-dark: #000000;
JSON
{
"hex": "#2128bd",
"rgb": {
"r": 33,
"g": 40,
"b": 189
},
"hsl": {
"h": 237.308,
"s": 70.27,
"l": 43.529
},
"oklch": {
"l": 0.40204,
"c": 0.22241,
"h": 269
},
"luminance": 0.05515
}Semantic roles & 50–950 ramp
primary
#2128BD
secondary
#CDC96D
accent
#E53BED
background
#F8F6FD
surface
#F0EBFA
border
#CBC6D3
text
#0C0614
muted
#7D7A83