#2F18B4#2F18B4
#2F18B4 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 38.2% C 0.220 H 274.9°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #2F18B4 |
|---|---|
| RGB | rgb(47, 24, 180) |
| HSL | hsl(249, 76%, 40%) |
| HSV | hsv(249, 87%, 71%) |
| CMYK | cmyk(73.9%, 86.7%, 0%, 29.4%) |
| CIE-LAB | lab(25.42, 55.41, -75.93) |
| CIE-LCH | lch(25.42, 94.00, 306.12°) |
| OKLab | oklab(38.22% 0.0188 -0.2194) |
| OKLCH | oklch(38.22% 0.22 274.9) |
| XYZ | xyz(9.7344, 4.5519, 43.5368) |
| Luminance | 0.0455 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 1.08
Ultramarine
#2000B1
ΔE00 2.88
True Blue
#010FCC
ΔE00 3.04
Mediumblue
#0000CD
ΔE00 3.43
Cobalt Blue
#030AA7
ΔE00 3.80
Royal Blue (survey)
#0504AA
ΔE00 3.83
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2F18B4 #9DB418
analogous
#184FB4 #2F18B4 #7D18B4
triadic
#2F18B4 #B42F18 #18B42F
tetradic
#2F18B4 #B4184F #9DB418 #18B47D
square
#2F18B4 #B4184F #9DB418 #18B47D
split-complementary
#2F18B4 #B47D18 #4FB418
monochromatic
#130A48 #21117E #2F18B4 #4327E2 #725DE9
Accessibility & contrast
On white
10.99
#2F18B4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#2F18B4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2F18B4
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2F18B4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2F18B4 | 1.00 | 10.99 | 1.91 | 10.99 |
| #FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0043B8
Deuteranopia (green-blind)
#0035B1
Tritanopia (blue-blind)
#004D6A
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #2f18b4; /* rgb */ color: rgb(47, 24, 180); /* oklch */ color: oklch(38.2% 0.220 274.9);
Tailwind
colors: {
custom: {
50: '#7f5dcc',
500: '#2f18b4',
950: '#000000',
},
}SCSS
$custom: #2f18b4; $custom-light: #7f5dcc; $custom-dark: #000000;
JSON
{
"hex": "#2f18b4",
"rgb": {
"r": 47,
"g": 24,
"b": 180
},
"hsl": {
"h": 248.846,
"s": 76.471,
"l": 40
},
"oklch": {
"l": 0.38218,
"c": 0.22024,
"h": 274.9
},
"luminance": 0.04553
}Semantic roles & 50–950 ramp
primary
#2F18B4
secondary
#BCCD5B
accent
#F335D7
background
#F8F5FC
surface
#F0E9F9
border
#CBC5D2
text
#0C0514
muted
#7D7982