#2F289D#2F289D
#2F289D is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.5% C 0.180 H 275.9°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #2F289D |
|---|---|
| RGB | rgb(47, 40, 157) |
| HSL | hsl(244, 59%, 39%) |
| HSV | hsv(244, 75%, 62%) |
| CMYK | cmyk(70.1%, 74.5%, 0%, 38.4%) |
| CIE-LAB | lab(25.43, 40.69, -62.02) |
| CIE-LCH | lch(25.43, 74.18, 303.26°) |
| OKLab | oklab(37.46% 0.0185 -0.1793) |
| OKLCH | oklch(37.46% 0.18 275.9) |
| XYZ | xyz(8.0149, 4.5555, 32.3487) |
| Luminance | 0.0456 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 4.30
Royal
#0C1793
ΔE00 4.56
Sapphire (survey)
#2138AB
ΔE00 5.07
Cobalt Blue
#030AA7
ΔE00 5.64
Royal Blue (survey)
#0504AA
ΔE00 6.11
Ultramarine
#2000B1
ΔE00 6.12
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2F289D #969D28
analogous
#285B9D #2F289D #69289D
triadic
#2F289D #9D2F28 #289D2F
tetradic
#2F289D #9D285B #969D28 #289D69
square
#2F289D #9D285B #969D28 #289D69
split-complementary
#2F289D #9D6928 #5B9D28
monochromatic
#120F3B #201C6C #2F289D #3F36CC #6E67D8
Accessibility & contrast
On white
10.99
#2F289D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#2F289D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #2F289D
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2F289D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##2F289D | 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)
#0041A0
Deuteranopia (green-blind)
#00379B
Tritanopia (blue-blind)
#004960
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #2f289d; /* rgb */ color: rgb(47, 40, 157); /* oklch */ color: oklch(37.5% 0.180 275.9);
Tailwind
colors: {
custom: {
50: '#7864bb',
500: '#2f289d',
950: '#000000',
},
}SCSS
$custom: #2f289d; $custom-light: #7864bb; $custom-dark: #000000;
JSON
{
"hex": "#2f289d",
"rgb": {
"r": 47,
"g": 40,
"b": 157
},
"hsl": {
"h": 243.59,
"s": 59.391,
"l": 38.627
},
"oklch": {
"l": 0.37463,
"c": 0.18022,
"h": 275.9
},
"luminance": 0.04556
}Semantic roles & 50–950 ramp
primary
#2F289D
secondary
#B9BE62
accent
#E345D9
background
#F7F6FB
surface
#EEEBF6
border
#C9C6D0
text
#0A0512
muted
#7C7A81