#1F22B0#1F22B0
#1F22B0 is a dark, highly saturated blue. Relative luminance 0.046; OKLCH L 37.9% C 0.213 H 269.5°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).
Color values
| HEX | #1F22B0 |
|---|---|
| RGB | rgb(31, 34, 176) |
| HSL | hsl(239, 70%, 41%) |
| HSV | hsv(239, 82%, 69%) |
| CMYK | cmyk(82.4%, 80.7%, 0%, 31%) |
| CIE-LAB | lab(25.47, 48.90, -73.48) |
| CIE-LCH | lch(25.47, 88.27, 303.64°) |
| OKLab | oklab(37.86% -0.0019 -0.2128) |
| OKLCH | oklch(37.86% 0.213 269.5) |
| XYZ | xyz(8.9709, 4.5689, 41.4750) |
| Luminance | 0.0457 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 2.96
True Blue
#010FCC
ΔE00 3.89
Cobalt Blue
#030AA7
ΔE00 4.22
Ultramarine
#2000B1
ΔE00 4.31
Royal Blue (survey)
#0504AA
ΔE00 4.54
Mediumblue
#0000CD
ΔE00 4.64
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F22B0 #B0AD1F
analogous
#1F6AB0 #1F22B0 #651FB0
triadic
#1F22B0 #B01F22 #22B01F
tetradic
#1F22B0 #B01F6A #B0AD1F #1FB065
square
#1F22B0 #B01F6A #B0AD1F #1FB065
split-complementary
#1F22B0 #B0651F #6AB01F
monochromatic
#0D0E48 #16187C #1F22B0 #3135DB #6568E4
Accessibility & contrast
On white
10.97
#1F22B0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#1F22B0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F22B0
10.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F22B0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F22B0 | 1.00 | 10.97 | 1.91 | 10.97 |
| #FFFFFF | 10.97 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.97 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0044B4
Deuteranopia (green-blind)
#0035AE
Tritanopia (blue-blind)
#004F6A
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #1f22b0; /* rgb */ color: rgb(31, 34, 176); /* oklch */ color: oklch(37.9% 0.213 269.5);
Tailwind
colors: {
custom: {
50: '#7860c9',
500: '#1f22b0',
950: '#000000',
},
}SCSS
$custom: #1f22b0; $custom-light: #7860c9; $custom-dark: #000000;
JSON
{
"hex": "#1f22b0",
"rgb": {
"r": 31,
"g": 34,
"b": 176
},
"hsl": {
"h": 238.759,
"s": 70.048,
"l": 40.588
},
"oklch": {
"l": 0.3786,
"c": 0.21281,
"h": 269.5
},
"luminance": 0.0457
}Semantic roles & 50–950 ramp
primary
#1F22B0
secondary
#C9C762
accent
#E93BED
background
#F8F5FC
surface
#EFEAF8
border
#CAC6D1
text
#0B0513
muted
#7C7982