#1F53A0#1F53A0
#1F53A0 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.2% C 0.137 H 258.6°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).
Color values
| HEX | #1F53A0 |
|---|---|
| RGB | rgb(31, 83, 160) |
| HSL | hsl(216, 68%, 37%) |
| HSV | hsv(216, 81%, 63%) |
| CMYK | cmyk(80.6%, 48.1%, 0%, 37.3%) |
| CIE-LAB | lab(36.01, 11.86, -46.62) |
| CIE-LCH | lch(36.01, 48.11, 284.27°) |
| OKLab | oklab(45.2% -0.0271 -0.134) |
| OKLCH | oklch(45.2% 0.137 258.6) |
| XYZ | xyz(10.0012, 9.0147, 34.4638) |
| Luminance | 0.0902 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dusk Blue
#26538D
ΔE00 2.34
Sapphire
#0F52BA
ΔE00 3.33
Denim Blue
#3B5B92
ΔE00 3.90
Light Navy Blue
#2E5A88
ΔE00 3.98
Cobalt (survey)
#1E488F
ΔE00 4.05
Light Navy
#155084
ΔE00 4.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F53A0 #A06C1F
analogous
#1F93A0 #1F53A0 #2C1FA0
triadic
#1F53A0 #A01F53 #53A01F
tetradic
#1F53A0 #A01F93 #A06C1F #1FA02C
square
#1F53A0 #A01F93 #A06C1F #1FA02C
split-complementary
#1F53A0 #A02C1F #93A01F
monochromatic
#0B1E39 #15386D #1F53A0 #296ED3 #5A90DF
Accessibility & contrast
On white
7.49
#1F53A0 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.80
#1F53A0 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F53A0
7.49:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F53A0 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F53A0 | 1.00 | 7.49 | 2.80 | 7.49 |
| #FFFFFF | 7.49 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.80 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.49 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#285BA3
Deuteranopia (green-blind)
#004F9E
Tritanopia (blue-blind)
#006572
Achromatopsia (no color)
#555555
Design tokens & code
CSS
--color: #1f53a0; /* rgb */ color: rgb(31, 83, 160); /* oklch */ color: oklch(45.2% 0.137 258.6);
Tailwind
colors: {
custom: {
50: '#7082bd',
500: '#1f53a0',
950: '#000000',
},
}SCSS
$custom: #1f53a0; $custom-light: #7082bd; $custom-dark: #000000;
JSON
{
"hex": "#1f53a0",
"rgb": {
"r": 31,
"g": 83,
"b": 160
},
"hsl": {
"h": 215.814,
"s": 67.539,
"l": 37.451
},
"oklch": {
"l": 0.45203,
"c": 0.13667,
"h": 258.6
},
"luminance": 0.09016
}Semantic roles & 50–950 ramp
primary
#1F53A0
secondary
#C39858
accent
#A53DEA
background
#F7F7FB
surface
#EDEEF6
border
#C8C9D0
text
#090A12
muted
#7B7C81