#1B516B#1B516B
#1B516B is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.2% C 0.071 H 233.3°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).
Color values
| HEX | #1B516B |
|---|---|
| RGB | rgb(27, 81, 107) |
| HSL | hsl(200, 60%, 26%) |
| HSV | hsv(200, 75%, 42%) |
| CMYK | cmyk(74.8%, 24.3%, 0%, 58%) |
| CIE-LAB | lab(32.21, -8.20, -20.11) |
| CIE-LCH | lch(32.21, 21.72, 247.83°) |
| OKLab | oklab(41.2% -0.0422 -0.0565) |
| OKLCH | oklch(41.2% 0.071 233.3) |
| XYZ | xyz(6.0472, 7.1787, 14.9740) |
| Luminance | 0.0718 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 4.26
Dark Grey Blue
#29465B
ΔE00 5.08
Deep Sea Blue
#015482
ΔE00 5.61
Light Navy
#155084
ΔE00 7.34
Dark Blue Grey
#1F3B4D
ΔE00 7.85
Prussian Blue
#004577
ΔE00 8.01
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B516B #6B351B
analogous
#1B6B5D #1B516B #1B296B
triadic
#1B516B #6B1B51 #516B1B
tetradic
#1B516B #5D1B6B #6B351B #296B1B
square
#1B516B #5D1B6B #6B351B #296B1B
split-complementary
#1B516B #6B1B29 #6B5D1B
monochromatic
#061218 #0F2C3A #1B516B #27769C #359BCC
Accessibility & contrast
On white
8.62
#1B516B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.44
#1B516B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B516B
8.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B516B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B516B | 1.00 | 8.62 | 2.44 | 8.62 |
| #FFFFFF | 8.62 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.62 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#44506C
Deuteranopia (green-blind)
#39486B
Tritanopia (blue-blind)
#00585A
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #1b516b; /* rgb */ color: rgb(27, 81, 107); /* oklch */ color: oklch(41.2% 0.071 233.3);
Tailwind
colors: {
custom: {
50: '#638195',
500: '#1b516b',
950: '#000000',
},
}SCSS
$custom: #1b516b; $custom-light: #638195; $custom-dark: #000000;
JSON
{
"hex": "#1b516b",
"rgb": {
"r": 27,
"g": 81,
"b": 107
},
"hsl": {
"h": 199.5,
"s": 59.701,
"l": 26.275
},
"oklch": {
"l": 0.412,
"c": 0.07055,
"h": 233.3
},
"luminance": 0.07179
}Semantic roles & 50–950 ramp
primary
#1B516B
secondary
#A06042
accent
#7845E3
background
#F6F7F9
surface
#EBEEF1
border
#C6C9CB
text
#060A0D
muted
#7A7C7E