#1F135C#1F135C
#1F135C is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.1% C 0.122 H 281.3°. Best body text is #FFFFFF at 16.08:1 contrast (WCAG AA passes).
Color values
| HEX | #1F135C |
|---|---|
| RGB | rgb(31, 19, 92) |
| HSL | hsl(250, 66%, 22%) |
| HSV | hsv(250, 79%, 36%) |
| CMYK | cmyk(66.3%, 79.3%, 0%, 63.9%) |
| CIE-LAB | lab(12.79, 28.99, -41.41) |
| CIE-LCH | lch(12.79, 50.55, 305.00°) |
| OKLab | oklab(26.1% 0.024 -0.1194) |
| OKLCH | oklch(26.1% 0.122 281.3) |
| XYZ | xyz(2.7291, 1.5296, 10.2746) |
| Luminance | 0.0153 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Indigo
#1F0954
ΔE00 2.53
Midnight Blue
#191970
ΔE00 3.79
Darkblue (survey)
#030764
ΔE00 4.08
Dark Blue
#00035B
ΔE00 4.47
Night Blue
#040348
ΔE00 4.85
Dark Royal Blue
#02066F
ΔE00 5.16
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F135C #505C13
analogous
#132C5C #1F135C #44135C
triadic
#1F135C #5C1F13 #135C1F
tetradic
#1F135C #5C132C #505C13 #135C44
square
#1F135C #5C132C #505C13 #135C44
split-complementary
#1F135C #5C4413 #2C5C13
monochromatic
#090519 #0E0929 #1F135C #301D8F #4128C1
Accessibility & contrast
On white
16.08
#1F135C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.31
#1F135C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F135C
16.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F135C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F135C | 1.00 | 16.08 | 1.31 | 16.08 |
| #FFFFFF | 16.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00245E
Deuteranopia (green-blind)
#001E5B
Tritanopia (blue-blind)
#002836
Achromatopsia (no color)
#212121
Design tokens & code
CSS
--color: #1f135c; /* rgb */ color: rgb(31, 19, 92); /* oklch */ color: oklch(26.1% 0.122 281.3);
Tailwind
colors: {
custom: {
50: '#64528b',
500: '#1f135c',
950: '#000000',
},
}SCSS
$custom: #1f135c; $custom-light: #64528b; $custom-dark: #000000;
JSON
{
"hex": "#1f135c",
"rgb": {
"r": 31,
"g": 19,
"b": 92
},
"hsl": {
"h": 249.863,
"s": 65.766,
"l": 21.765
},
"oklch": {
"l": 0.26095,
"c": 0.12181,
"h": 281.3
},
"luminance": 0.0153
}Semantic roles & 50–950 ramp
primary
#1F135C
secondary
#859437
accent
#E93FCD
background
#F6F4F8
surface
#EBE7F0
border
#C6C3CB
text
#06020C
muted
#7A787D