#1D477B#1D477B
#1D477B is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.7% C 0.100 H 255.3°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).
Color values
| HEX | #1D477B |
|---|---|
| RGB | rgb(29, 71, 123) |
| HSL | hsl(213, 62%, 30%) |
| HSV | hsv(213, 76%, 48%) |
| CMYK | cmyk(76.4%, 42.3%, 0%, 51.8%) |
| CIE-LAB | lab(29.90, 4.85, -33.78) |
| CIE-LCH | lch(29.90, 34.12, 278.17°) |
| OKLab | oklab(39.69% -0.0252 -0.0964) |
| OKLCH | oklch(39.69% 0.1 255.3) |
| XYZ | xyz(6.3338, 6.1970, 19.5974) |
| Luminance | 0.0620 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Twilight Blue
#0A437A
ΔE00 1.70
Darkish Blue
#014182
ΔE00 2.37
Prussian Blue
#004577
ΔE00 2.66
Cobalt (survey)
#1E488F
ΔE00 2.88
Light Navy
#155084
ΔE00 3.72
Dusk Blue
#26538D
ΔE00 4.24
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D477B #7B511D
analogous
#1D767B #1D477B #221D7B
triadic
#1D477B #7B1D47 #477B1D
tetradic
#1D477B #7B1D76 #7B511D #1D7B22
square
#1D477B #7B1D76 #7B511D #1D7B22
split-complementary
#1D477B #7B221D #767B1D
monochromatic
#060E19 #112A49 #1D477B #2964AD #4081D2
Accessibility & contrast
On white
9.38
#1D477B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.24
#1D477B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D477B
9.38:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D477B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D477B | 1.00 | 9.38 | 2.24 | 9.38 |
| #FFFFFF | 9.38 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.38 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2E4B7D
Deuteranopia (green-blind)
#1F427A
Tritanopia (blue-blind)
#00535B
Achromatopsia (no color)
#464646
Design tokens & code
CSS
--color: #1d477b; /* rgb */ color: rgb(29, 71, 123); /* oklch */ color: oklch(39.7% 0.100 255.3);
Tailwind
colors: {
custom: {
50: '#6779a1',
500: '#1d477b',
950: '#000000',
},
}SCSS
$custom: #1d477b; $custom-light: #6779a1; $custom-dark: #000000;
JSON
{
"hex": "#1d477b",
"rgb": {
"r": 29,
"g": 71,
"b": 123
},
"hsl": {
"h": 213.191,
"s": 61.842,
"l": 29.804
},
"oklch": {
"l": 0.39686,
"c": 0.09969,
"h": 255.3
},
"luminance": 0.06198
}Semantic roles & 50–950 ramp
primary
#1D477B
secondary
#AF8045
accent
#9D43E5
background
#F6F7FA
surface
#EBEDF3
border
#C6C8CD
text
#07090F
muted
#7A7B7F