#231C73#231C73
#231C73 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.142 H 277.4°. Best body text is #FFFFFF at 14.14:1 contrast (WCAG AA passes).
Color values
| HEX | #231C73 |
|---|---|
| RGB | rgb(35, 28, 115) |
| HSL | hsl(245, 61%, 28%) |
| HSV | hsv(245, 76%, 45%) |
| CMYK | cmyk(69.6%, 75.7%, 0%, 54.9%) |
| CIE-LAB | lab(17.58, 32.07, -48.66) |
| CIE-LCH | lch(17.58, 58.27, 303.39°) |
| OKLab | oklab(30.32% 0.0181 -0.1405) |
| OKLCH | oklch(30.32% 0.142 277.4) |
| XYZ | xyz(4.2019, 2.4253, 16.4630) |
| Luminance | 0.0243 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 1.30
Dark Royal Blue
#02066F
ΔE00 5.03
Royal
#0C1793
ΔE00 5.26
Darkblue (survey)
#030764
ΔE00 5.29
Deep Blue
#040273
ΔE00 5.58
Navy
#000080
ΔE00 6.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#231C73 #6C731C
analogous
#1C4073 #231C73 #4E1C73
triadic
#231C73 #73231C #1C7323
tetradic
#231C73 #731C40 #6C731C #1C734E
square
#231C73 #731C40 #6C731C #1C734E
split-complementary
#231C73 #734E1C #40731C
monochromatic
#070619 #141042 #231C73 #3228A4 #463ACF
Accessibility & contrast
On white
14.14
#231C73 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.49
#231C73 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #231C73
14.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##231C73 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##231C73 | 1.00 | 14.14 | 1.49 | 14.14 |
| #FFFFFF | 14.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.49 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 14.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002F76
Deuteranopia (green-blind)
#002771
Tritanopia (blue-blind)
#003445
Achromatopsia (no color)
#2B2B2B
Design tokens & code
CSS
--color: #231c73; /* rgb */ color: rgb(35, 28, 115); /* oklch */ color: oklch(30.3% 0.142 277.4);
Tailwind
colors: {
custom: {
50: '#6a599c',
500: '#231c73',
950: '#000000',
},
}SCSS
$custom: #231c73; $custom-light: #6a599c; $custom-dark: #000000;
JSON
{
"hex": "#231c73",
"rgb": {
"r": 35,
"g": 28,
"b": 115
},
"hsl": {
"h": 244.828,
"s": 60.839,
"l": 28.039
},
"oklch": {
"l": 0.30324,
"c": 0.1417,
"h": 277.4
},
"luminance": 0.02426
}Semantic roles & 50–950 ramp
primary
#231C73
secondary
#9FA743
accent
#E444D7
background
#F6F5F9
surface
#ECE9F2
border
#C7C5CC
text
#07040E
muted
#7A797E