#1D336E#1D336E
#1D336E is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.0% C 0.106 H 265.6°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1D336E |
|---|---|
| RGB | rgb(29, 51, 110) |
| HSL | hsl(224, 58%, 27%) |
| HSV | hsv(224, 74%, 43%) |
| CMYK | cmyk(73.6%, 53.6%, 0%, 56.9%) |
| CIE-LAB | lab(22.84, 13.51, -36.86) |
| CIE-LCH | lch(22.84, 39.26, 290.13°) |
| OKLab | oklab(33.97% -0.0081 -0.1059) |
| OKLCH | oklch(33.97% 0.106 265.6) |
| XYZ | xyz(4.5040, 3.7542, 15.2361) |
| Luminance | 0.0376 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine
#042E60
ΔE00 3.54
Marine Blue
#01386A
ΔE00 4.79
Darkish Blue
#014182
ΔE00 6.39
Navy Blue
#1B2A4A
ΔE00 6.72
Twilight Blue
#0A437A
ΔE00 6.96
Cobalt (survey)
#1E488F
ΔE00 7.80
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D336E #6E581D
analogous
#1D5B6E #1D336E #301D6E
triadic
#1D336E #6E1D33 #336E1D
tetradic
#1D336E #6E1D5B #6E581D #1D6E30
square
#1D336E #6E1D5B #6E581D #1D6E30
split-complementary
#1D336E #6E301D #5B6E1D
monochromatic
#060B18 #101D3E #1D336E #2A499E #3A62CB
Accessibility & contrast
On white
11.99
#1D336E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.75
#1D336E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D336E
11.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D336E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D336E | 1.00 | 11.99 | 1.75 | 11.99 |
| #FFFFFF | 11.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.75 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0F3A70
Deuteranopia (green-blind)
#00336D
Tritanopia (blue-blind)
#00414B
Achromatopsia (no color)
#373737
Design tokens & code
CSS
--color: #1d336e; /* rgb */ color: rgb(29, 51, 110); /* oklch */ color: oklch(34.0% 0.106 265.6);
Tailwind
colors: {
custom: {
50: '#646a98',
500: '#1d336e',
950: '#000000',
},
}SCSS
$custom: #1d336e; $custom-light: #646a98; $custom-dark: #000000;
JSON
{
"hex": "#1d336e",
"rgb": {
"r": 29,
"g": 51,
"b": 110
},
"hsl": {
"h": 223.704,
"s": 58.273,
"l": 27.255
},
"oklch": {
"l": 0.33967,
"c": 0.10621,
"h": 265.6
},
"luminance": 0.03755
}Semantic roles & 50–950 ramp
primary
#1D336E
secondary
#A28944
accent
#B746E1
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060E
muted
#7A7A7E