#1C258D#1C258D
#1C258D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.1% C 0.168 H 270.0°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).
Color values
| HEX | #1C258D |
|---|---|
| RGB | rgb(28, 37, 141) |
| HSL | hsl(235, 67%, 33%) |
| HSV | hsv(235, 80%, 55%) |
| CMYK | cmyk(80.1%, 73.8%, 0%, 44.7%) |
| CIE-LAB | lab(21.92, 35.06, -57.99) |
| CIE-LCH | lch(21.92, 67.77, 301.15°) |
| OKLab | oklab(34.14% 0 -0.168) |
| OKLCH | oklch(34.14% 0.168 270) |
| XYZ | xyz(5.9465, 3.4924, 25.5548) |
| Luminance | 0.0349 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Royal
#0C1793
ΔE00 3.46
Midnight Blue
#191970
ΔE00 5.04
Cobalt Blue
#030AA7
ΔE00 6.04
Sapphire (survey)
#2138AB
ΔE00 6.37
Royal Blue (survey)
#0504AA
ΔE00 6.65
Indigo Blue
#3A18B1
ΔE00 6.81
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C258D #8D841C
analogous
#1C5D8D #1C258D #4B1C8D
triadic
#1C258D #8D1C25 #258D1C
tetradic
#1C258D #8D1C5D #8D841C #1C8D4B
square
#1C258D #8D1C5D #8D841C #1C8D4B
split-complementary
#1C258D #8D4B1C #5D8D1C
monochromatic
#080A27 #12185A #1C258D #2632C0 #4954DB
Accessibility & contrast
On white
12.36
#1C258D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.70
#1C258D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C258D
12.36:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C258D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C258D | 1.00 | 12.36 | 1.70 | 12.36 |
| #FFFFFF | 12.36 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.70 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.36 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#003A90
Deuteranopia (green-blind)
#002F8B
Tritanopia (blue-blind)
#004356
Achromatopsia (no color)
#343434
Design tokens & code
CSS
--color: #1c258d; /* rgb */ color: rgb(28, 37, 141); /* oklch */ color: oklch(34.1% 0.168 270.0);
Tailwind
colors: {
custom: {
50: '#6d60af',
500: '#1c258d',
950: '#000000',
},
}SCSS
$custom: #1c258d; $custom-light: #6d60af; $custom-dark: #000000;
JSON
{
"hex": "#1c258d",
"rgb": {
"r": 28,
"g": 37,
"b": 141
},
"hsl": {
"h": 235.221,
"s": 66.864,
"l": 33.137
},
"oklch": {
"l": 0.34139,
"c": 0.16796,
"h": 270
},
"luminance": 0.03493
}Semantic roles & 50–950 ramp
primary
#1C258D
secondary
#BDB348
accent
#DC3EEA
background
#F7F5FA
surface
#EDE9F5
border
#C8C5CF
text
#080511
muted
#7B7980