#1F536C#1F536C
#1F536C is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 41.9% C 0.069 H 232.7°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).
Color values
| HEX | #1F536C |
|---|---|
| RGB | rgb(31, 83, 108) |
| HSL | hsl(199, 55%, 27%) |
| HSV | hsv(199, 71%, 42%) |
| CMYK | cmyk(71.3%, 23.1%, 0%, 57.6%) |
| CIE-LAB | lab(33.05, -8.38, -19.43) |
| CIE-LCH | lch(33.05, 21.16, 246.66°) |
| OKLab | oklab(41.92% -0.0416 -0.0545) |
| OKLCH | oklch(41.92% 0.069 232.7) |
| XYZ | xyz(6.3640, 7.5598, 15.3082) |
| Luminance | 0.0756 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 4.85
Dark Grey Blue
#29465B
ΔE00 5.50
Deep Sea Blue
#015482
ΔE00 5.90
Ugly Blue
#31668A
ΔE00 7.69
Light Navy
#155084
ΔE00 7.70
Light Navy Blue
#2E5A88
ΔE00 8.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1F536C #6C381F
analogous
#1F6C5F #1F536C #1F2C6C
triadic
#1F536C #6C1F53 #536C1F
tetradic
#1F536C #5F1F6C #6C381F #2C6C1F
square
#1F536C #5F1F6C #6C381F #2C6C1F
split-complementary
#1F536C #6C1F2C #6C5F1F
monochromatic
#071218 #112E3C #1F536C #2D789C #3E9BC8
Accessibility & contrast
On white
8.36
#1F536C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.51
#1F536C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1F536C
8.36:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1F536C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1F536C | 1.00 | 8.36 | 2.51 | 8.36 |
| #FFFFFF | 8.36 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.51 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.36 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#47526D
Deuteranopia (green-blind)
#3C4A6C
Tritanopia (blue-blind)
#005A5B
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #1f536c; /* rgb */ color: rgb(31, 83, 108); /* oklch */ color: oklch(41.9% 0.069 232.7);
Tailwind
colors: {
custom: {
50: '#658396',
500: '#1f536c',
950: '#000000',
},
}SCSS
$custom: #1f536c; $custom-light: #658396; $custom-dark: #000000;
JSON
{
"hex": "#1f536c",
"rgb": {
"r": 31,
"g": 83,
"b": 108
},
"hsl": {
"h": 199.481,
"s": 55.396,
"l": 27.255
},
"oklch": {
"l": 0.4192,
"c": 0.06855,
"h": 232.7
},
"luminance": 0.07561
}Semantic roles & 50–950 ramp
primary
#1F536C
secondary
#A06447
accent
#7A49DF
background
#F6F8F9
surface
#EBEFF2
border
#C6CACC
text
#060A0D
muted
#7A7C7E