#1F536F#1F536F
#1F536F is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.1% C 0.072 H 235.7°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).
Color values
| HEX | #1F536F |
|---|---|
| RGB | rgb(31, 83, 111) |
| HSL | hsl(201, 56%, 28%) |
| HSV | hsv(201, 72%, 44%) |
| CMYK | cmyk(72.1%, 25.2%, 0%, 56.5%) |
| CIE-LAB | lab(33.19, -7.27, -21.09) |
| CIE-LCH | lch(33.19, 22.31, 250.97°) |
| OKLab | oklab(42.08% -0.0404 -0.0593) |
| OKLCH | oklch(42.08% 0.072 235.7) |
| XYZ | xyz(6.5265, 7.6248, 16.1636) |
| Luminance | 0.0763 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 4.38
Deep Sea Blue
#015482
ΔE00 4.58
Dark Grey Blue
#29465B
ΔE00 5.35
Light Navy
#155084
ΔE00 6.32
Light Navy Blue
#2E5A88
ΔE00 6.83
Ugly Blue
#31668A
ΔE00 7.10
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F536F #6F3B1F
analogous
#1F6F63 #1F536F #1F2B6F
triadic
#1F536F #6F1F53 #536F1F
tetradic
#1F536F #631F6F #6F3B1F #2B6F1F
square
#1F536F #631F6F #6F3B1F #2B6F1F
split-complementary
#1F536F #6F1F2B #6F631F
monochromatic
#071218 #122F3F #1F536F #2C779F #3F99C9
Accessibility & contrast
On white
8.32
#1F536F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.53
#1F536F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F536F
8.32:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F536F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F536F | 1.00 | 8.32 | 2.53 | 8.32 |
| #FFFFFF | 8.32 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.53 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.32 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#465270
Deuteranopia (green-blind)
#3B4B6F
Tritanopia (blue-blind)
#005A5C
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #1f536f; /* rgb */ color: rgb(31, 83, 111); /* oklch */ color: oklch(42.1% 0.072 235.7);
Tailwind
colors: {
custom: {
50: '#658398',
500: '#1f536f',
950: '#000000',
},
}SCSS
$custom: #1f536f; $custom-light: #658398; $custom-dark: #000000;
JSON
{
"hex": "#1f536f",
"rgb": {
"r": 31,
"g": 83,
"b": 111
},
"hsl": {
"h": 201,
"s": 56.338,
"l": 27.843
},
"oklch": {
"l": 0.42077,
"c": 0.07175,
"h": 235.7
},
"luminance": 0.07626
}Semantic roles & 50–950 ramp
primary
#1F536F
secondary
#A36747
accent
#7D48E0
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#060A0D
muted
#7A7C7E