#1B186D#1B186D
#1B186D is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.140 H 274.4°. Best body text is #FFFFFF at 15.02:1 contrast (WCAG AA passes).
Color values
| HEX | #1B186D |
|---|---|
| RGB | rgb(27, 24, 109) |
| HSL | hsl(242, 64%, 26%) |
| HSV | hsv(242, 78%, 43%) |
| CMYK | cmyk(75.2%, 78%, 0%, 57.3%) |
| CIE-LAB | lab(15.44, 31.45, -48.31) |
| CIE-LCH | lch(15.44, 57.65, 303.06°) |
| OKLab | oklab(28.45% 0.0107 -0.1397) |
| OKLCH | oklch(28.45% 0.14 274.4) |
| XYZ | xyz(3.5380, 1.9901, 14.6627) |
| Luminance | 0.0199 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 0.59
Darkblue (survey)
#030764
ΔE00 4.02
Dark Royal Blue
#02066F
ΔE00 4.08
Deep Blue
#040273
ΔE00 4.80
Dark Indigo
#1F0954
ΔE00 5.32
Dark Blue
#00035B
ΔE00 5.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B186D #6A6D18
analogous
#183F6D #1B186D #45186D
triadic
#1B186D #6D1B18 #186D1B
tetradic
#1B186D #6D183F #6A6D18 #186D45
square
#1B186D #6D183F #6A6D18 #186D45
split-complementary
#1B186D #6D4518 #3F6D18
monochromatic
#060619 #0F0D3B #1B186D #27239F #342ED1
Accessibility & contrast
On white
15.02
#1B186D on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.40
#1B186D on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B186D
15.02:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B186D | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B186D | 1.00 | 15.02 | 1.40 | 15.02 |
| #FFFFFF | 15.02 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.40 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 15.02 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002A6F
Deuteranopia (green-blind)
#00236B
Tritanopia (blue-blind)
#003141
Achromatopsia (no color)
#272727
Design tokens & code
CSS
--color: #1b186d; /* rgb */ color: rgb(27, 24, 109); /* oklch */ color: oklch(28.4% 0.140 274.4);
Tailwind
colors: {
custom: {
50: '#665698',
500: '#1b186d',
950: '#000000',
},
}SCSS
$custom: #1b186d; $custom-light: #665698; $custom-dark: #000000;
JSON
{
"hex": "#1b186d",
"rgb": {
"r": 27,
"g": 24,
"b": 109
},
"hsl": {
"h": 242.118,
"s": 63.91,
"l": 26.078
},
"oklch": {
"l": 0.28447,
"c": 0.14014,
"h": 274.4
},
"luminance": 0.0199
}Semantic roles & 50–950 ramp
primary
#1B186D
secondary
#9FA33E
accent
#E741E1
background
#F6F5F9
surface
#EBE9F2
border
#C6C5CC
text
#07030E
muted
#7A787E