#1D537C#1D537C
#1D537C is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.7% C 0.088 H 245.2°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).
Color values
| HEX | #1D537C |
|---|---|
| RGB | rgb(29, 83, 124) |
| HSL | hsl(206, 62%, 30%) |
| HSV | hsv(206, 77%, 49%) |
| CMYK | cmyk(76.6%, 33.1%, 0%, 51.4%) |
| CIE-LAB | lab(33.78, -2.64, -28.26) |
| CIE-LCH | lch(33.78, 28.38, 264.66°) |
| OKLab | oklab(42.74% -0.0371 -0.0801) |
| OKLCH | oklch(42.74% 0.088 245.2) |
| XYZ | xyz(7.2366, 7.9021, 20.2087) |
| Luminance | 0.0790 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.75
Light Navy
#155084
ΔE00 2.22
Light Navy Blue
#2E5A88
ΔE00 3.45
Dusk Blue
#26538D
ΔE00 3.94
Prussian Blue
#004577
ΔE00 4.83
Dark Slate Blue
#214761
ΔE00 5.52
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D537C #7C461D
analogous
#1D7C76 #1D537C #1D237C
triadic
#1D537C #7C1D53 #537C1D
tetradic
#1D537C #761D7C #7C461D #237C1D
square
#1D537C #761D7C #7C461D #237C1D
split-complementary
#1D537C #7C1D23 #7C761D
monochromatic
#061119 #11324A #1D537C #2974AE #4194D3
Accessibility & contrast
On white
8.14
#1D537C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.58
#1D537C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D537C
8.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D537C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D537C | 1.00 | 8.14 | 2.58 | 8.14 |
| #FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.58 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#40547E
Deuteranopia (green-blind)
#334B7B
Tritanopia (blue-blind)
#005D62
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1d537c; /* rgb */ color: rgb(29, 83, 124); /* oklch */ color: oklch(42.7% 0.088 245.2);
Tailwind
colors: {
custom: {
50: '#6783a2',
500: '#1d537c',
950: '#000000',
},
}SCSS
$custom: #1d537c; $custom-light: #6783a2; $custom-dark: #000000;
JSON
{
"hex": "#1d537c",
"rgb": {
"r": 29,
"g": 83,
"b": 124
},
"hsl": {
"h": 205.895,
"s": 62.092,
"l": 30
},
"oklch": {
"l": 0.42741,
"c": 0.08828,
"h": 245.2
},
"luminance": 0.07903
}Semantic roles & 50–950 ramp
primary
#1D537C
secondary
#B07345
accent
#8943E5
background
#F6F7FA
surface
#EBEEF3
border
#C6C9CD
text
#070A0F
muted
#7A7C7F