#1B124B#1B124B
#1B124B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.100 H 282.9°. Best body text is #FFFFFF at 17.01:1 contrast (WCAG AA passes).
Color values
| HEX | #1B124B |
|---|---|
| RGB | rgb(27, 18, 75) |
| HSL | hsl(249, 61%, 18%) |
| HSV | hsv(249, 76%, 29%) |
| CMYK | cmyk(64%, 76%, 0%, 70.6%) |
| CIE-LAB | lab(10.36, 22.97, -33.82) |
| CIE-LCH | lch(10.36, 40.89, 304.19°) |
| OKLab | oklab(23.71% 0.0223 -0.0974) |
| OKLCH | oklch(23.71% 0.1 282.9) |
| XYZ | xyz(1.9379, 1.1735, 6.7796) |
| Luminance | 0.0117 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Indigo
#1F0954
ΔE00 3.68
Navy Blue (survey)
#001146
ΔE00 4.03
Night Blue
#040348
ΔE00 4.22
Midnight Blue (survey)
#020035
ΔE00 5.69
Dark Navy
#000435
ΔE00 6.05
Dark Blue
#00035B
ΔE00 6.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B124B #424B12
analogous
#12254B #1B124B #37124B
triadic
#1B124B #4B1B12 #124B1B
tetradic
#1B124B #4B1225 #424B12 #124B37
square
#1B124B #4B1225 #424B12 #124B37
split-complementary
#1B124B #4B3712 #254B12
monochromatic
#090619 #09061A #1B124B #2D1E7C #3F2AAE
Accessibility & contrast
On white
17.01
#1B124B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.23
#1B124B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B124B
17.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B124B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B124B | 1.00 | 17.01 | 1.23 | 17.01 |
| #FFFFFF | 17.01 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.23 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 17.01 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001E4D
Deuteranopia (green-blind)
#001A4A
Tritanopia (blue-blind)
#02212C
Achromatopsia (no color)
#1C1C1C
Design tokens & code
CSS
--color: #1b124b; /* rgb */ color: rgb(27, 18, 75); /* oklch */ color: oklch(23.7% 0.100 282.9);
Tailwind
colors: {
custom: {
50: '#5e507e',
500: '#1b124b',
950: '#000000',
},
}SCSS
$custom: #1b124b; $custom-light: #5e507e; $custom-dark: #000000;
JSON
{
"hex": "#1b124b",
"rgb": {
"r": 27,
"g": 18,
"b": 75
},
"hsl": {
"h": 249.474,
"s": 61.29,
"l": 18.235
},
"oklch": {
"l": 0.23713,
"c": 0.09987,
"h": 282.9
},
"luminance": 0.01174
}Semantic roles & 50–950 ramp
primary
#1B124B
secondary
#788435
accent
#E443CB
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#05020A
muted
#79787C