#1C478D#1C478D
#1C478D is a dark, vivid blue. Relative luminance 0.067; OKLCH L 40.9% C 0.126 H 259.8°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1C478D |
|---|---|
| RGB | rgb(28, 71, 141) |
| HSL | hsl(217, 67%, 33%) |
| HSV | hsv(217, 80%, 55%) |
| CMYK | cmyk(80.1%, 49.6%, 0%, 44.7%) |
| CIE-LAB | lab(31.06, 11.99, -43.08) |
| CIE-LCH | lch(31.06, 44.72, 285.55°) |
| OKLab | oklab(40.95% -0.0223 -0.1238) |
| OKLCH | oklch(40.95% 0.126 259.8) |
| XYZ | xyz(7.5381, 6.6756, 26.0854) |
| Luminance | 0.0668 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 0.42
Darkish Blue
#014182
ΔE00 2.77
Twilight Blue
#0A437A
ΔE00 3.41
Cobalt
#0047AB
ΔE00 3.96
Dusk Blue
#26538D
ΔE00 4.07
Prussian Blue
#004577
ΔE00 4.60
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C478D #8D621C
analogous
#1C7F8D #1C478D #291C8D
triadic
#1C478D #8D1C47 #478D1C
tetradic
#1C478D #8D1C7F #8D621C #1C8D29
square
#1C478D #8D1C7F #8D621C #1C8D29
split-complementary
#1C478D #8D291C #7F8D1C
monochromatic
#081427 #122D5A #1C478D #2661C0 #4980DB
Accessibility & contrast
On white
8.99
#1C478D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#1C478D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C478D
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C478D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C478D | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1F4F90
Deuteranopia (green-blind)
#00448C
Tritanopia (blue-blind)
#005863
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #1c478d; /* rgb */ color: rgb(28, 71, 141); /* oklch */ color: oklch(40.9% 0.126 259.8);
Tailwind
colors: {
custom: {
50: '#6b79af',
500: '#1c478d',
950: '#000000',
},
}SCSS
$custom: #1c478d; $custom-light: #6b79af; $custom-dark: #000000;
JSON
{
"hex": "#1c478d",
"rgb": {
"r": 28,
"g": 71,
"b": 141
},
"hsl": {
"h": 217.168,
"s": 66.864,
"l": 33.137
},
"oklch": {
"l": 0.40949,
"c": 0.12582,
"h": 259.8
},
"luminance": 0.06676
}Semantic roles & 50–950 ramp
primary
#1C478D
secondary
#BD9048
accent
#A83EEA
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#080910
muted
#7A7B7F