#1D445B#1D445B
#1D445B is a dark, muted cyan. Relative luminance 0.052; OKLCH L 37.0% C 0.059 H 237.3°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).
Color values
| HEX | #1D445B |
|---|---|
| RGB | rgb(29, 68, 91) |
| HSL | hsl(202, 52%, 24%) |
| HSV | hsv(202, 68%, 36%) |
| CMYK | cmyk(68.1%, 25.3%, 0%, 64.3%) |
| CIE-LAB | lab(27.16, -5.67, -17.75) |
| CIE-LCH | lch(27.16, 18.63, 252.30°) |
| OKLab | oklab(36.95% -0.032 -0.0498) |
| OKLCH | oklch(36.95% 0.059 237.3) |
| XYZ | xyz(4.4614, 5.1503, 10.6545) |
| Luminance | 0.0515 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Slate Blue
#214761
ΔE00 1.78
Dark Grey Blue
#29465B
ΔE00 2.00
Dark Blue Grey
#1F3B4D
ΔE00 3.44
Charcoal
#36454F
ΔE00 6.38
Prussian Blue
#004577
ΔE00 6.75
Twilight Blue
#0A437A
ΔE00 7.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D445B #5B341D
analogous
#1D5B53 #1D445B #1D255B
triadic
#1D445B #5B1D44 #445B1D
tetradic
#1D445B #531D5B #5B341D #255B1D
square
#1D445B #531D5B #5B341D #255B1D
split-complementary
#1D445B #5B1D25 #5B531D
monochromatic
#071117 #0E212D #1D445B #2C6789 #3B89B8
Accessibility & contrast
On white
10.34
#1D445B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.03
#1D445B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D445B
10.34:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D445B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D445B | 1.00 | 10.34 | 2.03 | 10.34 |
| #FFFFFF | 10.34 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.03 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.34 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#39445C
Deuteranopia (green-blind)
#313D5B
Tritanopia (blue-blind)
#004A4C
Achromatopsia (no color)
#404040
Design tokens & code
CSS
--color: #1d445b; /* rgb */ color: rgb(29, 68, 91); /* oklch */ color: oklch(37.0% 0.059 237.3);
Tailwind
colors: {
custom: {
50: '#607789',
500: '#1d445b',
950: '#000000',
},
}SCSS
$custom: #1d445b; $custom-light: #607789; $custom-dark: #000000;
JSON
{
"hex": "#1d445b",
"rgb": {
"r": 29,
"g": 68,
"b": 91
},
"hsl": {
"h": 202.258,
"s": 51.667,
"l": 23.529
},
"oklch": {
"l": 0.36951,
"c": 0.0592,
"h": 237.3
},
"luminance": 0.05151
}Semantic roles & 50–950 ramp
primary
#1D445B
secondary
#906044
accent
#824DDB
background
#F5F7F8
surface
#EAEDF0
border
#C6C8CB
text
#05080B
muted
#797B7C