#231C8C#231C8C
#231C8C is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.1% C 0.174 H 274.1°. Best body text is #FFFFFF at 12.99:1 contrast (WCAG AA passes).
Color values
| HEX | #231C8C |
|---|---|
| RGB | rgb(35, 28, 140) |
| HSL | hsl(244, 67%, 33%) |
| HSV | hsv(244, 80%, 55%) |
| CMYK | cmyk(75%, 80%, 0%, 45.1%) |
| CIE-LAB | lab(20.36, 40.56, -59.92) |
| CIE-LCH | lch(20.36, 72.36, 304.09°) |
| OKLab | oklab(33.12% 0.0124 -0.1733) |
| OKLCH | oklch(33.12% 0.174 274.1) |
| XYZ | xyz(5.8404, 3.0807, 25.0927) |
| Luminance | 0.0308 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal
#0C1793
ΔE00 1.92
Midnight Blue
#191970
ΔE00 4.48
Cobalt Blue
#030AA7
ΔE00 4.52
Darkblue
#00008B
ΔE00 4.81
Royal Blue (survey)
#0504AA
ΔE00 5.07
Indigo (survey)
#380282
ΔE00 5.16
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#231C8C #858C1C
analogous
#1C4D8C #231C8C #5B1C8C
triadic
#231C8C #8C231C #1C8C23
tetradic
#231C8C #8C1C4D #858C1C #1C8C5B
square
#231C8C #8C1C4D #858C1C #1C8C5B
split-complementary
#231C8C #8C5B1C #4D8C1C
monochromatic
#090826 #161259 #231C8C #3026BF #5148DA
Accessibility & contrast
On white
12.99
#231C8C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.62
#231C8C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #231C8C
12.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##231C8C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##231C8C | 1.00 | 12.99 | 1.62 | 12.99 |
| #FFFFFF | 12.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.62 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00368F
Deuteranopia (green-blind)
#002C8A
Tritanopia (blue-blind)
#003E54
Achromatopsia (no color)
#313131
Design tokens & code
CSS
--color: #231c8c; /* rgb */ color: rgb(35, 28, 140); /* oklch */ color: oklch(33.1% 0.174 274.1);
Tailwind
colors: {
custom: {
50: '#705baf',
500: '#231c8c',
950: '#000000',
},
}SCSS
$custom: #231c8c; $custom-light: #705baf; $custom-dark: #000000;
JSON
{
"hex": "#231c8c",
"rgb": {
"r": 35,
"g": 28,
"b": 140
},
"hsl": {
"h": 243.75,
"s": 66.667,
"l": 32.941
},
"oklch": {
"l": 0.33118,
"c": 0.17377,
"h": 274.1
},
"luminance": 0.03081
}Semantic roles & 50–950 ramp
primary
#231C8C
secondary
#B5BC48
accent
#EA3EDF
background
#F7F5FA
surface
#EDE9F5
border
#C8C5CF
text
#090410
muted
#7B797F