#1D384B#1D384B
#1D384B is a dark, muted cyan. Relative luminance 0.036; OKLCH L 32.8% C 0.047 H 240.9°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).
Color values
| HEX | #1D384B |
|---|---|
| RGB | rgb(29, 56, 75) |
| HSL | hsl(205, 44%, 20%) |
| HSV | hsv(205, 61%, 29%) |
| CMYK | cmyk(61.3%, 25.3%, 0%, 70.6%) |
| CIE-LAB | lab(22.29, -3.77, -14.78) |
| CIE-LCH | lch(22.29, 15.26, 255.71°) |
| OKLab | oklab(32.84% -0.023 -0.0413) |
| OKLCH | oklch(32.84% 0.047 240.9) |
| XYZ | xyz(3.1904, 3.5973, 7.1815) |
| Luminance | 0.0360 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dark Blue Grey
#1F3B4D
ΔE00 1.25
Dark Grey Blue
#29465B
ΔE00 4.52
Dark Slate Blue
#214761
ΔE00 5.30
Charcoal
#36454F
ΔE00 6.32
Gunmetal
#2A3439
ΔE00 7.14
Marine Blue
#01386A
ΔE00 7.96
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D384B #4B301D
analogous
#1D4B47 #1D384B #1D214B
triadic
#1D384B #4B1D38 #384B1D
tetradic
#1D384B #471D4B #4B301D #214B1D
square
#1D384B #471D4B #4B301D #214B1D
split-complementary
#1D384B #4B1D21 #4B471D
monochromatic
#091016 #0C171F #1D384B #2E5977 #3F7AA3
Accessibility & contrast
On white
12.21
#1D384B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.72
#1D384B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D384B
12.21:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D384B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D384B | 1.00 | 12.21 | 1.72 | 12.21 |
| #FFFFFF | 12.21 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.72 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 12.21 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#30384C
Deuteranopia (green-blind)
#29334B
Tritanopia (blue-blind)
#003D3E
Achromatopsia (no color)
#353535
Design tokens & code
CSS
--color: #1d384b; /* rgb */ color: rgb(29, 56, 75); /* oklch */ color: oklch(32.8% 0.047 240.9);
Tailwind
colors: {
custom: {
50: '#5d6e7d',
500: '#1d384b',
950: '#000000',
},
}SCSS
$custom: #1d384b; $custom-light: #5d6e7d; $custom-dark: #000000;
JSON
{
"hex": "#1d384b",
"rgb": {
"r": 29,
"g": 56,
"b": 75
},
"hsl": {
"h": 204.783,
"s": 44.231,
"l": 20.392
},
"oklch": {
"l": 0.32839,
"c": 0.0473,
"h": 240.9
},
"luminance": 0.03598
}Semantic roles & 50–950 ramp
primary
#1D384B
secondary
#805D44
accent
#8954D4
background
#F5F6F7
surface
#E9EBEE
border
#C5C6C9
text
#040709
muted
#797A7B