#2540C6#2540C6
#2540C6 is a dark, highly saturated blue. Relative luminance 0.081; OKLCH L 44.9% C 0.209 H 267.4°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #2540C6 |
|---|---|
| RGB | rgb(37, 64, 198) |
| HSL | hsl(230, 69%, 46%) |
| HSV | hsv(230, 81%, 78%) |
| CMYK | cmyk(81.3%, 67.7%, 0%, 22.4%) |
| CIE-LAB | lab(34.26, 39.54, -71.95) |
| CIE-LCH | lch(34.26, 82.10, 298.79°) |
| OKLab | oklab(44.9% -0.0093 -0.2084) |
| OKLCH | oklch(44.9% 0.209 267.4) |
| XYZ | xyz(12.7858, 8.1358, 54.3116) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Blue Blue
#2242C7
ΔE00 0.66
Blue (survey)
#0343DF
ΔE00 3.13
Sapphire (survey)
#2138AB
ΔE00 4.21
Ocean Blue
#4F42B5
ΔE00 4.96
Blue With A Hint Of Purple
#533CC6
ΔE00 5.35
Blurple
#5539CC
ΔE00 5.92
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2540C6 #C6AB25
analogous
#2590C6 #2540C6 #5A25C6
triadic
#2540C6 #C62540 #40C625
tetradic
#2540C6 #C62590 #C6AB25 #25C65A
square
#2540C6 #C62590 #C6AB25 #25C65A
split-complementary
#2540C6 #C65A25 #90C625
monochromatic
#121F5F #1B2F92 #2540C6 #4B63DD #7E90E7
Accessibility & contrast
On white
7.99
#2540C6 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#2540C6 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2540C6
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2540C6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2540C6 | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0058CA
Deuteranopia (green-blind)
#0049C4
Tritanopia (blue-blind)
#00657E
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #2540c6; /* rgb */ color: rgb(37, 64, 198); /* oklch */ color: oklch(44.9% 0.209 267.4);
Tailwind
colors: {
custom: {
50: '#7c75d8',
500: '#2540c6',
950: '#000000',
},
}SCSS
$custom: #2540c6; $custom-light: #7c75d8; $custom-dark: #000000;
JSON
{
"hex": "#2540c6",
"rgb": {
"r": 37,
"g": 64,
"b": 198
},
"hsl": {
"h": 229.938,
"s": 68.511,
"l": 46.078
},
"oklch": {
"l": 0.44904,
"c": 0.20866,
"h": 267.4
},
"luminance": 0.08137
}Semantic roles & 50–950 ramp
primary
#2540C6
secondary
#CFC177
accent
#CE3CEB
background
#F8F7FD
surface
#F0EDFB
border
#CBC8D4
text
#0C0815
muted
#7D7B83