#1D3D63#1D3D63
#1D3D63 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.076 H 254.1°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).
Color values
| HEX | #1D3D63 |
|---|---|
| RGB | rgb(29, 61, 99) |
| HSL | hsl(213, 55%, 25%) |
| HSV | hsv(213, 71%, 39%) |
| CMYK | cmyk(70.7%, 38.4%, 0%, 61.2%) |
| CIE-LAB | lab(25.26, 2.06, -25.91) |
| CIE-LCH | lch(25.26, 25.99, 274.55°) |
| OKLab | oklab(35.59% -0.021 -0.0735) |
| OKLCH | oklch(35.59% 0.076 254.1) |
| XYZ | xyz(4.4267, 4.4991, 12.4371) |
| Luminance | 0.0450 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Marine Blue
#01386A
ΔE00 2.78
Twilight Blue
#0A437A
ΔE00 3.89
Darkish Blue
#014182
ΔE00 4.50
Prussian Blue
#004577
ΔE00 4.53
Marine
#042E60
ΔE00 5.03
Dark Slate Blue
#214761
ΔE00 6.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D3D63 #63431D
analogous
#1D6063 #1D3D63 #201D63
triadic
#1D3D63 #631D3D #3D631D
tetradic
#1D3D63 #631D60 #63431D #1D6320
square
#1D3D63 #631D60 #63431D #1D6320
split-complementary
#1D3D63 #63201D #60631D
monochromatic
#070F18 #0F2034 #1D3D63 #2B5A92 #3977C2
Accessibility & contrast
On white
11.05
#1D3D63 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.90
#1D3D63 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D3D63
11.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D3D63 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D3D63 | 1.00 | 11.05 | 1.90 | 11.05 |
| #FFFFFF | 11.05 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.90 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 11.05 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2C3F65
Deuteranopia (green-blind)
#223962
Tritanopia (blue-blind)
#00464B
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #1d3d63; /* rgb */ color: rgb(29, 61, 99); /* oklch */ color: oklch(35.6% 0.076 254.1);
Tailwind
colors: {
custom: {
50: '#62728f',
500: '#1d3d63',
950: '#000000',
},
}SCSS
$custom: #1d3d63; $custom-light: #62728f; $custom-dark: #000000;
JSON
{
"hex": "#1d3d63",
"rgb": {
"r": 29,
"g": 61,
"b": 99
},
"hsl": {
"h": 212.571,
"s": 54.688,
"l": 25.098
},
"oklch": {
"l": 0.35593,
"c": 0.07648,
"h": 254.1
},
"luminance": 0.045
}Semantic roles & 50–950 ramp
primary
#1D3D63
secondary
#987244
accent
#9A4ADE
background
#F6F6F8
surface
#EBECF0
border
#C6C7CB
text
#05070C
muted
#7A7A7D