#1B445C#1B445C
#1B445C is a dark, moderate cyan. Relative luminance 0.051; OKLCH L 36.9% C 0.062 H 237.4°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).
Color values
| HEX | #1B445C |
|---|---|
| RGB | rgb(27, 68, 92) |
| HSL | hsl(202, 55%, 23%) |
| HSV | hsv(202, 71%, 36%) |
| CMYK | cmyk(70.7%, 26.1%, 0%, 63.9%) |
| CIE-LAB | lab(27.13, -5.69, -18.45) |
| CIE-LCH | lch(27.13, 19.31, 252.87°) |
| OKLab | oklab(36.92% -0.0331 -0.0518) |
| OKLCH | oklch(36.92% 0.062 237.4) |
| XYZ | xyz(4.4501, 5.1395, 10.8806) |
| Luminance | 0.0514 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 1.65
Dark Grey Blue
#29465B
ΔE00 2.22
Dark Blue Grey
#1F3B4D
ΔE00 3.65
Prussian Blue
#004577
ΔE00 6.44
Charcoal
#36454F
ΔE00 6.73
Twilight Blue
#0A437A
ΔE00 7.21
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B445C #5C331B
analogous
#1B5C53 #1B445C #1B235C
triadic
#1B445C #5C1B44 #445C1B
tetradic
#1B445C #531B5C #5C331B #235C1B
square
#1B445C #531B5C #5C331B #235C1B
split-complementary
#1B445C #5C1B23 #5C531B
monochromatic
#071118 #0D212D #1B445C #29678B #378ABB
Accessibility & contrast
On white
10.36
#1B445C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.03
#1B445C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B445C
10.36:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B445C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B445C | 1.00 | 10.36 | 2.03 | 10.36 |
| #FFFFFF | 10.36 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.03 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.36 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#39445D
Deuteranopia (green-blind)
#303D5C
Tritanopia (blue-blind)
#004A4C
Achromatopsia (no color)
#404040
Design tokens & code
CSS
--color: #1b445c; /* rgb */ color: rgb(27, 68, 92); /* oklch */ color: oklch(36.9% 0.062 237.4);
Tailwind
colors: {
custom: {
50: '#60778a',
500: '#1b445c',
950: '#000000',
},
}SCSS
$custom: #1b445c; $custom-light: #60778a; $custom-dark: #000000;
JSON
{
"hex": "#1b445c",
"rgb": {
"r": 27,
"g": 68,
"b": 92
},
"hsl": {
"h": 202.154,
"s": 54.622,
"l": 23.333
},
"oklch": {
"l": 0.36921,
"c": 0.06152,
"h": 237.4
},
"luminance": 0.0514
}Semantic roles & 50–950 ramp
primary
#1B445C
secondary
#925F41
accent
#814ADE
background
#F5F7F8
surface
#EAEDF0
border
#C6C8CB
text
#05080B
muted
#797B7C