#1F38BC#1F38BC
#1F38BC is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.3% C 0.206 H 267.2°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).
Color values
| HEX | #1F38BC |
|---|---|
| RGB | rgb(31, 56, 188) |
| HSL | hsl(230, 72%, 43%) |
| HSV | hsv(230, 84%, 74%) |
| CMYK | cmyk(83.5%, 70.2%, 0%, 26.3%) |
| CIE-LAB | lab(31.23, 40.48, -71.09) |
| CIE-LCH | lch(31.23, 81.81, 299.66°) |
| OKLab | oklab(42.34% -0.01 -0.206) |
| OKLCH | oklch(42.34% 0.206 267.2) |
| XYZ | xyz(11.0532, 6.7491, 48.2874) |
| Luminance | 0.0675 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.32
Blue Blue
#2242C7
ΔE00 3.11
Blue (survey)
#0343DF
ΔE00 5.29
Ocean Blue
#4F42B5
ΔE00 5.50
Blue With A Hint Of Purple
#533CC6
ΔE00 5.89
Blurple
#5539CC
ΔE00 6.40
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F38BC #BCA31F
analogous
#1F86BC #1F38BC #551FBC
triadic
#1F38BC #BC1F38 #38BC1F
tetradic
#1F38BC #BC1F86 #BCA31F #1FBC55
square
#1F38BC #BC1F86 #BCA31F #1FBC55
split-complementary
#1F38BC #BC551F #86BC1F
monochromatic
#0E1953 #162887 #1F38BC #3A54DE #6E82E7
Accessibility & contrast
On white
8.94
#1F38BC on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.35
#1F38BC on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F38BC
8.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F38BC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F38BC | 1.00 | 8.94 | 2.35 | 8.94 |
| #FFFFFF | 8.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.35 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051C0
Deuteranopia (green-blind)
#0042BA
Tritanopia (blue-blind)
#005D76
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #1f38bc; /* rgb */ color: rgb(31, 56, 188); /* oklch */ color: oklch(42.3% 0.206 267.2);
Tailwind
colors: {
custom: {
50: '#796fd1',
500: '#1f38bc',
950: '#000000',
},
}SCSS
$custom: #1f38bc; $custom-light: #796fd1; $custom-dark: #000000;
JSON
{
"hex": "#1f38bc",
"rgb": {
"r": 31,
"g": 56,
"b": 188
},
"hsl": {
"h": 230.446,
"s": 71.689,
"l": 42.941
},
"oklch": {
"l": 0.42344,
"c": 0.20629,
"h": 267.2
},
"luminance": 0.0675
}Semantic roles & 50–950 ramp
primary
#1F38BC
secondary
#CDBD69
accent
#D239EE
background
#F8F6FD
surface
#EFECFA
border
#CAC7D3
text
#0B0714
muted
#7C7A83