#1C306A#1C306A
#1C306A is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.105 H 266.4°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).
Color values
| HEX | #1C306A |
|---|---|
| RGB | rgb(28, 48, 106) |
| HSL | hsl(225, 58%, 26%) |
| HSV | hsv(225, 74%, 42%) |
| CMYK | cmyk(73.6%, 54.7%, 0%, 58.4%) |
| CIE-LAB | lab(21.58, 13.88, -36.32) |
| CIE-LCH | lch(21.58, 38.88, 290.91°) |
| OKLab | oklab(32.9% -0.0066 -0.1044) |
| OKLCH | oklch(32.9% 0.105 266.4) |
| XYZ | xyz(4.1365, 3.4010, 14.0713) |
| Luminance | 0.0340 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine
#042E60
ΔE00 3.36
Marine Blue
#01386A
ΔE00 5.40
Navy Blue
#1B2A4A
ΔE00 6.13
Darkish Blue
#014182
ΔE00 7.36
Twilight Blue
#0A437A
ΔE00 7.89
Midnight Blue
#191970
ΔE00 8.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1C306A #6A561C
analogous
#1C576A #1C306A #2F1C6A
triadic
#1C306A #6A1C30 #306A1C
tetradic
#1C306A #6A1C57 #6A561C #1C6A2F
square
#1C306A #6A1C57 #6A561C #1C6A2F
split-complementary
#1C306A #6A2F1C #576A1C
monochromatic
#060B18 #0F1A3A #1C306A #29469A #365CCA
Accessibility & contrast
On white
12.50
#1C306A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.68
#1C306A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1C306A
12.50:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1C306A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1C306A | 1.00 | 12.50 | 1.68 | 12.50 |
| #FFFFFF | 12.50 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.68 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.50 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0B376C
Deuteranopia (green-blind)
#003069
Tritanopia (blue-blind)
#003E48
Achromatopsia (no color)
#343434
Design tokens & code
CSS
--color: #1c306a; /* rgb */ color: rgb(28, 48, 106); /* oklch */ color: oklch(32.9% 0.105 266.4);
Tailwind
colors: {
custom: {
50: '#636795',
500: '#1c306a',
950: '#000000',
},
}SCSS
$custom: #1c306a; $custom-light: #636795; $custom-dark: #000000;
JSON
{
"hex": "#1c306a",
"rgb": {
"r": 28,
"g": 48,
"b": 106
},
"hsl": {
"h": 224.615,
"s": 58.209,
"l": 26.275
},
"oklch": {
"l": 0.32901,
"c": 0.10458,
"h": 266.4
},
"luminance": 0.03401
}Semantic roles & 50–950 ramp
primary
#1C306A
secondary
#9F8743
accent
#BA46E1
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060D
muted
#7A7A7E