#1F1FBD#1F1FBD
#1F1FBD is a dark, highly saturated blue. Relative luminance 0.049; OKLCH L 39.1% C 0.230 H 269.0°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).
Color values
| HEX | #1F1FBD |
|---|---|
| RGB | rgb(31, 31, 189) |
| HSL | hsl(240, 72%, 43%) |
| HSV | hsv(240, 84%, 74%) |
| CMYK | cmyk(83.6%, 83.6%, 0%, 25.9%) |
| CIE-LAB | lab(26.58, 54.38, -79.39) |
| CIE-LCH | lch(26.58, 96.23, 304.41°) |
| OKLab | oklab(39.08% -0.004 -0.2298) |
| OKLCH | oklch(39.08% 0.23 269) |
| XYZ | xyz(10.2372, 4.9442, 48.5490) |
| Luminance | 0.0495 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
True Blue
#010FCC
ΔE00 2.43
Indigo Blue
#3A18B1
ΔE00 2.75
Mediumblue
#0000CD
ΔE00 3.35
Ultramarine Blue
#1805DB
ΔE00 3.87
Ultramarine
#2000B1
ΔE00 4.19
Pure Blue
#0203E2
ΔE00 4.42
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F1FBD #BDBD1F
analogous
#1F6EBD #1F1FBD #6E1FBD
triadic
#1F1FBD #BD1F1F #1FBD1F
tetradic
#1F1FBD #BD1F6E #BDBD1F #1FBD6E
square
#1F1FBD #BD1F6E #BDBD1F #1FBD6E
split-complementary
#1F1FBD #BD6E1F #6EBD1F
monochromatic
#0E0E54 #161688 #1F1FBD #3A3ADF #6F6FE7
Accessibility & contrast
On white
10.56
#1F1FBD on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#1F1FBD on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F1FBD
10.56:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F1FBD | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F1FBD | 1.00 | 10.56 | 1.99 | 10.56 |
| #FFFFFF | 10.56 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.56 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0047C1
Deuteranopia (green-blind)
#0036BA
Tritanopia (blue-blind)
#005371
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #1f1fbd; /* rgb */ color: rgb(31, 31, 189); /* oklch */ color: oklch(39.1% 0.230 269.0);
Tailwind
colors: {
custom: {
50: '#7c60d2',
500: '#1f1fbd',
950: '#000000',
},
}SCSS
$custom: #1f1fbd; $custom-light: #7c60d2; $custom-dark: #000000;
JSON
{
"hex": "#1f1fbd",
"rgb": {
"r": 31,
"g": 31,
"b": 189
},
"hsl": {
"h": 240,
"s": 71.818,
"l": 43.137
},
"oklch": {
"l": 0.39082,
"c": 0.22986,
"h": 269
},
"luminance": 0.04945
}Semantic roles & 50–950 ramp
primary
#1F1FBD
secondary
#CECE6A
accent
#EF39EF
background
#F8F5FD
surface
#F0EAFA
border
#CBC6D3
text
#0C0514
muted
#7D7983