#1C479B#1C479B
#1C479B is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.1% C 0.146 H 261.9°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).
Color values
| HEX | #1C479B |
|---|---|
| RGB | rgb(28, 71, 155) |
| HSL | hsl(220, 69%, 36%) |
| HSV | hsv(220, 82%, 61%) |
| CMYK | cmyk(81.9%, 54.2%, 0%, 39.2%) |
| CIE-LAB | lab(32.08, 17.65, -49.97) |
| CIE-LCH | lch(32.08, 53.00, 289.45°) |
| OKLab | oklab(42.05% -0.0204 -0.1441) |
| OKLCH | oklch(42.05% 0.146 261.9) |
| XYZ | xyz(8.6464, 7.1189, 31.9224) |
| Luminance | 0.0712 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.86
Cobalt
#0047AB
ΔE00 2.16
Darkish Blue
#014182
ΔE00 4.37
Dusk Blue
#26538D
ΔE00 4.83
Sapphire
#0F52BA
ΔE00 5.06
Twilight Blue
#0A437A
ΔE00 5.23
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C479B #9B701C
analogous
#1C869B #1C479B #301C9B
triadic
#1C479B #9B1C47 #479B1C
tetradic
#1C479B #9B1C86 #9B701C #1C9B30
square
#1C479B #9B1C86 #9B701C #1C9B30
split-complementary
#1C479B #9B301C #869B1C
monochromatic
#091833 #132F67 #1C479B #255FCF #5282E0
Accessibility & contrast
On white
8.66
#1C479B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.42
#1C479B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C479B
8.66:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C479B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C479B | 1.00 | 8.66 | 2.42 | 8.66 |
| #FFFFFF | 8.66 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.42 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.66 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#03529E
Deuteranopia (green-blind)
#004699
Tritanopia (blue-blind)
#005C6A
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #1c479b; /* rgb */ color: rgb(28, 71, 155); /* oklch */ color: oklch(42.1% 0.146 261.9);
Tailwind
colors: {
custom: {
50: '#6e79b9',
500: '#1c479b',
950: '#000000',
},
}SCSS
$custom: #1c479b; $custom-light: #6e79b9; $custom-dark: #000000;
JSON
{
"hex": "#1c479b",
"rgb": {
"r": 28,
"g": 71,
"b": 155
},
"hsl": {
"h": 219.685,
"s": 69.399,
"l": 35.882
},
"oklch": {
"l": 0.42052,
"c": 0.14555,
"h": 261.9
},
"luminance": 0.0712
}Semantic roles & 50–950 ramp
primary
#1C479B
secondary
#C39C50
accent
#B03CEC
background
#F7F7FB
surface
#EDEDF6
border
#C8C8D0
text
#080911
muted
#7B7B80