#2840AC#2840AC
#2840AC is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.174 H 268.2°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).
Color values
| HEX | #2840AC |
|---|---|
| RGB | rgb(40, 64, 172) |
| HSL | hsl(229, 62%, 42%) |
| HSV | hsv(229, 77%, 67%) |
| CMYK | cmyk(76.7%, 62.8%, 0%, 32.5%) |
| CIE-LAB | lab(32.02, 30.24, -60.27) |
| CIE-LCH | lch(32.02, 67.43, 296.64°) |
| OKLab | oklab(42.57% -0.0056 -0.1742) |
| OKLCH | oklch(42.57% 0.174 268.2) |
| XYZ | xyz(10.1523, 7.0953, 39.8562) |
| Luminance | 0.0710 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.35
Blue Blue
#2242C7
ΔE00 3.60
Cobalt
#0047AB
ΔE00 4.12
Blueberry
#464196
ΔE00 5.34
Ocean Blue
#4F42B5
ΔE00 5.48
Cobalt (survey)
#1E488F
ΔE00 6.30
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2840AC #AC9428
analogous
#2882AC #2840AC #5228AC
triadic
#2840AC #AC2840 #40AC28
tetradic
#2840AC #AC2882 #AC9428 #28AC52
square
#2840AC #AC2882 #AC9428 #28AC52
split-complementary
#2840AC #AC5228 #82AC28
monochromatic
#111B49 #1C2E7A #2840AC #3F5AD2 #7184DE
Accessibility & contrast
On white
8.68
#2840AC on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.42
#2840AC on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2840AC
8.68:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2840AC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2840AC | 1.00 | 8.68 | 2.42 | 8.68 |
| #FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.68 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052B0
Deuteranopia (green-blind)
#0045AA
Tritanopia (blue-blind)
#005C70
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #2840ac; /* rgb */ color: rgb(40, 64, 172); /* oklch */ color: oklch(42.6% 0.174 268.2);
Tailwind
colors: {
custom: {
50: '#7774c6',
500: '#2840ac',
950: '#000000',
},
}SCSS
$custom: #2840ac; $custom-light: #7774c6; $custom-dark: #000000;
JSON
{
"hex": "#2840ac",
"rgb": {
"r": 40,
"g": 64,
"b": 172
},
"hsl": {
"h": 229.091,
"s": 62.264,
"l": 41.569
},
"oklch": {
"l": 0.42572,
"c": 0.17433,
"h": 268.2
},
"luminance": 0.07096
}Semantic roles & 50–950 ramp
primary
#2840AC
secondary
#C5B46B
accent
#C842E5
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0813
muted
#7C7B82