#2143AA#2143AA
#2143AA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.170 H 265.5°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).
Color values
| HEX | #2143AA |
|---|---|
| RGB | rgb(33, 67, 170) |
| HSL | hsl(225, 67%, 40%) |
| HSV | hsv(225, 81%, 67%) |
| CMYK | cmyk(80.6%, 60.6%, 0%, 33.3%) |
| CIE-LAB | lab(32.34, 26.77, -58.56) |
| CIE-LCH | lch(32.34, 64.39, 294.57°) |
| OKLab | oklab(42.68% -0.0133 -0.1693) |
| OKLCH | oklch(42.68% 0.17 265.5) |
| XYZ | xyz(9.8875, 7.2388, 38.8985) |
| Luminance | 0.0724 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 2.65
Sapphire (survey)
#2138AB
ΔE00 3.57
Blue Blue
#2242C7
ΔE00 4.16
Cobalt (survey)
#1E488F
ΔE00 4.98
Sapphire
#0F52BA
ΔE00 5.51
Blueberry
#464196
ΔE00 6.03
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2143AA #AA8821
analogous
#2188AA #2143AA #4321AA
triadic
#2143AA #AA2143 #43AA21
tetradic
#2143AA #AA2188 #AA8821 #21AA43
square
#2143AA #AA2188 #AA8821 #21AA43
split-complementary
#2143AA #AA4321 #88AA21
monochromatic
#0D1B43 #172F77 #2143AA #315AD7 #6483E1
Accessibility & contrast
On white
8.58
#2143AA on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.45
#2143AA on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2143AA
8.58:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2143AA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2143AA | 1.00 | 8.58 | 2.45 | 8.58 |
| #FFFFFF | 8.58 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.45 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.58 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0053AD
Deuteranopia (green-blind)
#0046A8
Tritanopia (blue-blind)
#005D70
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #2143aa; /* rgb */ color: rgb(33, 67, 170); /* oklch */ color: oklch(42.7% 0.170 265.5);
Tailwind
colors: {
custom: {
50: '#7476c4',
500: '#2143aa',
950: '#000000',
},
}SCSS
$custom: #2143aa; $custom-light: #7476c4; $custom-dark: #000000;
JSON
{
"hex": "#2143aa",
"rgb": {
"r": 33,
"g": 67,
"b": 170
},
"hsl": {
"h": 225.109,
"s": 67.488,
"l": 39.804
},
"oklch": {
"l": 0.42678,
"c": 0.16984,
"h": 265.5
},
"luminance": 0.0724
}Semantic roles & 50–950 ramp
primary
#2143AA
secondary
#C6AD61
accent
#BF3DEA
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0813
muted
#7C7B82