#1D156B#1D156B
#1D156B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.9% C 0.140 H 276.4°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).
Color values
| HEX | #1D156B |
|---|---|
| RGB | rgb(29, 21, 107) |
| HSL | hsl(246, 67%, 25%) |
| HSV | hsv(246, 80%, 42%) |
| CMYK | cmyk(72.9%, 80.4%, 0%, 58%) |
| CIE-LAB | lab(14.73, 32.75, -48.17) |
| CIE-LCH | lch(14.73, 58.25, 304.21°) |
| OKLab | oklab(27.92% 0.0157 -0.1392) |
| OKLCH | oklch(27.92% 0.14 276.4) |
| XYZ | xyz(3.4278, 1.8588, 14.0852) |
| Luminance | 0.0186 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 1.39
Darkblue (survey)
#030764
ΔE00 3.45
Dark Royal Blue
#02066F
ΔE00 3.59
Deep Blue
#040273
ΔE00 4.29
Dark Indigo
#1F0954
ΔE00 4.59
Dark Blue
#00035B
ΔE00 4.73
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D156B #636B15
analogous
#15386B #1D156B #48156B
triadic
#1D156B #6B1D15 #156B1D
tetradic
#1D156B #6B1538 #636B15 #156B48
square
#1D156B #6B1538 #636B15 #156B48
split-complementary
#1D156B #6B4815 #386B15
monochromatic
#07051A #0F0B38 #1D156B #2B1F9E #3929D1
Accessibility & contrast
On white
15.31
#1D156B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.37
#1D156B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D156B
15.31:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D156B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D156B | 1.00 | 15.31 | 1.37 | 15.31 |
| #FFFFFF | 15.31 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.37 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 15.31 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00296D
Deuteranopia (green-blind)
#002169
Tritanopia (blue-blind)
#002E3F
Achromatopsia (no color)
#252525
Design tokens & code
CSS
--color: #1d156b; /* rgb */ color: rgb(29, 21, 107); /* oklch */ color: oklch(27.9% 0.140 276.4);
Tailwind
colors: {
custom: {
50: '#665496',
500: '#1d156b',
950: '#000000',
},
}SCSS
$custom: #1d156b; $custom-light: #665496; $custom-dark: #000000;
JSON
{
"hex": "#1d156b",
"rgb": {
"r": 29,
"g": 21,
"b": 107
},
"hsl": {
"h": 245.581,
"s": 67.188,
"l": 25.098
},
"oklch": {
"l": 0.27919,
"c": 0.14011,
"h": 276.4
},
"luminance": 0.01859
}Semantic roles & 50–950 ramp
primary
#1D156B
secondary
#98A23A
accent
#EA3EDA
background
#F6F4F9
surface
#EBE8F2
border
#C6C4CC
text
#07030D
muted
#7A787E