#2840AF#2840AF
#2840AF is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.178 H 268.2°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).
Color values
| HEX | #2840AF |
|---|---|
| RGB | rgb(40, 64, 175) |
| HSL | hsl(229, 63%, 42%) |
| HSV | hsv(229, 77%, 69%) |
| CMYK | cmyk(77.1%, 63.4%, 0%, 31.4%) |
| CIE-LAB | lab(32.28, 31.36, -61.63) |
| CIE-LCH | lch(32.28, 69.15, 296.97°) |
| OKLab | oklab(42.85% -0.0056 -0.1782) |
| OKLCH | oklch(42.85% 0.178 268.2) |
| XYZ | xyz(10.4436, 7.2119, 41.3907) |
| Luminance | 0.0721 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.36
Blue Blue
#2242C7
ΔE00 3.19
Cobalt
#0047AB
ΔE00 4.27
Ocean Blue
#4F42B5
ΔE00 5.27
Blueberry
#464196
ΔE00 5.54
Blue (survey)
#0343DF
ΔE00 6.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2840AF #AF9728
analogous
#2884AF #2840AF #5328AF
triadic
#2840AF #AF2840 #40AF28
tetradic
#2840AF #AF2884 #AF9728 #28AF53
square
#2840AF #AF2884 #AF9728 #28AF53
split-complementary
#2840AF #AF5328 #84AF28
monochromatic
#111C4B #1D2E7D #2840AF #415BD4 #7386DF
Accessibility & contrast
On white
8.60
#2840AF on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.44
#2840AF on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2840AF
8.60:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2840AF | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2840AF | 1.00 | 8.60 | 2.44 | 8.60 |
| #FFFFFF | 8.60 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.60 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0052B3
Deuteranopia (green-blind)
#0046AD
Tritanopia (blue-blind)
#005D71
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #2840af; /* rgb */ color: rgb(40, 64, 175); /* oklch */ color: oklch(42.8% 0.178 268.2);
Tailwind
colors: {
custom: {
50: '#7874c8',
500: '#2840af',
950: '#000000',
},
}SCSS
$custom: #2840af; $custom-light: #7874c8; $custom-dark: #000000;
JSON
{
"hex": "#2840af",
"rgb": {
"r": 40,
"g": 64,
"b": 175
},
"hsl": {
"h": 229.333,
"s": 62.791,
"l": 42.157
},
"oklch": {
"l": 0.42846,
"c": 0.17832,
"h": 268.2
},
"luminance": 0.07213
}Semantic roles & 50–950 ramp
primary
#2840AF
secondary
#C6B66D
accent
#C942E6
background
#F7F7FC
surface
#EEEDF8
border
#C9C8D1
text
#0A0813
muted
#7C7B82