#1F5271#1F5271
#1F5271 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.9% C 0.075 H 238.9°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).
Color values
| HEX | #1F5271 |
|---|---|
| RGB | rgb(31, 82, 113) |
| HSL | hsl(203, 57%, 28%) |
| HSV | hsv(203, 73%, 44%) |
| CMYK | cmyk(72.6%, 27.4%, 0%, 55.7%) |
| CIE-LAB | lab(32.96, -5.91, -22.70) |
| CIE-LCH | lch(32.96, 23.46, 255.42°) |
| OKLab | oklab(41.93% -0.0385 -0.064) |
| OKLCH | oklch(41.93% 0.075 238.9) |
| XYZ | xyz(6.5618, 7.5174, 16.7248) |
| Luminance | 0.0752 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 3.45
Dark Slate Blue
#214761
ΔE00 3.95
Light Navy
#155084
ΔE00 4.94
Dark Grey Blue
#29465B
ΔE00 5.21
Light Navy Blue
#2E5A88
ΔE00 5.76
Prussian Blue
#004577
ΔE00 6.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F5271 #713E1F
analogous
#1F7167 #1F5271 #1F2971
triadic
#1F5271 #711F52 #52711F
tetradic
#1F5271 #671F71 #713E1F #29711F
square
#1F5271 #671F71 #713E1F #29711F
split-complementary
#1F5271 #711F29 #71671F
monochromatic
#071118 #122F41 #1F5271 #2C75A1 #4096CB
Accessibility & contrast
On white
8.39
#1F5271 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.50
#1F5271 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F5271
8.39:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F5271 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F5271 | 1.00 | 8.39 | 2.50 | 8.39 |
| #FFFFFF | 8.39 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.50 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.39 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#445272
Deuteranopia (green-blind)
#384A70
Tritanopia (blue-blind)
#005A5D
Achromatopsia (no color)
#4D4D4D
Design tokens & code
CSS
--color: #1f5271; /* rgb */ color: rgb(31, 82, 113); /* oklch */ color: oklch(41.9% 0.075 238.9);
Tailwind
colors: {
custom: {
50: '#66829a',
500: '#1f5271',
950: '#000000',
},
}SCSS
$custom: #1f5271; $custom-light: #66829a; $custom-dark: #000000;
JSON
{
"hex": "#1f5271",
"rgb": {
"r": 31,
"g": 82,
"b": 113
},
"hsl": {
"h": 202.683,
"s": 56.944,
"l": 28.235
},
"oklch": {
"l": 0.41925,
"c": 0.07467,
"h": 238.9
},
"luminance": 0.07518
}Semantic roles & 50–950 ramp
primary
#1F5271
secondary
#A56A47
accent
#8148E0
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#060A0E
muted
#7A7C7E