#1C478E#1C478E
#1C478E is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.0% C 0.127 H 260.0°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).
Color values
| HEX | #1C478E |
|---|---|
| RGB | rgb(28, 71, 142) |
| HSL | hsl(217, 67%, 33%) |
| HSV | hsv(217, 80%, 56%) |
| CMYK | cmyk(80.3%, 50%, 0%, 44.3%) |
| CIE-LAB | lab(31.13, 12.40, -43.58) |
| CIE-LCH | lch(31.13, 45.31, 285.88°) |
| OKLab | oklab(41.03% -0.0221 -0.1253) |
| OKLCH | oklch(41.03% 0.127 260) |
| XYZ | xyz(7.6128, 6.7055, 26.4790) |
| Luminance | 0.0671 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 0.34
Darkish Blue
#014182
ΔE00 2.86
Twilight Blue
#0A437A
ΔE00 3.54
Cobalt
#0047AB
ΔE00 3.83
Dusk Blue
#26538D
ΔE00 4.10
Prussian Blue
#004577
ΔE00 4.71
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C478E #8E631C
analogous
#1C808E #1C478E #2A1C8E
triadic
#1C478E #8E1C47 #478E1C
tetradic
#1C478E #8E1C80 #8E631C #1C8E2A
square
#1C478E #8E1C80 #8E631C #1C8E2A
split-complementary
#1C478E #8E2A1C #808E1C
monochromatic
#081428 #122D5B #1C478E #2661C1 #4980DB
Accessibility & contrast
On white
8.97
#1C478E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#1C478E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C478E
8.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C478E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C478E | 1.00 | 8.97 | 2.34 | 8.97 |
| #FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1E4F91
Deuteranopia (green-blind)
#00448D
Tritanopia (blue-blind)
#005863
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #1c478e; /* rgb */ color: rgb(28, 71, 142); /* oklch */ color: oklch(41.0% 0.127 260.0);
Tailwind
colors: {
custom: {
50: '#6b79b0',
500: '#1c478e',
950: '#000000',
},
}SCSS
$custom: #1c478e; $custom-light: #6b79b0; $custom-dark: #000000;
JSON
{
"hex": "#1c478e",
"rgb": {
"r": 28,
"g": 71,
"b": 142
},
"hsl": {
"h": 217.368,
"s": 67.059,
"l": 33.333
},
"oklch": {
"l": 0.41025,
"c": 0.12725,
"h": 260
},
"luminance": 0.06706
}Semantic roles & 50–950 ramp
primary
#1C478E
secondary
#BD9149
accent
#A93EEA
background
#F6F7FA
surface
#ECEDF5
border
#C7C8CF
text
#080910
muted
#7A7B7F