#1D576B#1D576B
#1D576B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.9% C 0.067 H 224.7°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #1D576B |
|---|---|
| RGB | rgb(29, 87, 107) |
| HSL | hsl(195, 57%, 27%) |
| HSV | hsv(195, 73%, 42%) |
| CMYK | cmyk(72.9%, 18.7%, 0%, 58%) |
| CIE-LAB | lab(34.27, -11.50, -16.92) |
| CIE-LCH | lch(34.27, 20.46, 235.80°) |
| OKLab | oklab(42.86% -0.0478 -0.0473) |
| OKLCH | oklch(42.86% 0.067 224.7) |
| XYZ | xyz(6.5677, 8.1384, 15.1318) |
| Luminance | 0.0814 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Petrol
#005F6A
ΔE00 6.74
Dark Slate Blue
#214761
ΔE00 7.66
Dark Grey Blue
#29465B
ΔE00 7.90
Deep Teal
#00555A
ΔE00 8.65
Ugly Blue
#31668A
ΔE00 8.70
Deep Sea Blue
#015482
ΔE00 8.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D576B #6B311D
analogous
#1D6B58 #1D576B #1D306B
triadic
#1D576B #6B1D57 #576B1D
tetradic
#1D576B #581D6B #6B311D #306B1D
square
#1D576B #581D6B #6B311D #306B1D
split-complementary
#1D576B #6B1D30 #6B581D
monochromatic
#071418 #10303B #1D576B #2A7E9B #39A4C9
Accessibility & contrast
On white
7.99
#1D576B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1D576B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D576B
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D576B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D576B | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4C556C
Deuteranopia (green-blind)
#414D6B
Tritanopia (blue-blind)
#005D5D
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1d576b; /* rgb */ color: rgb(29, 87, 107); /* oklch */ color: oklch(42.9% 0.067 224.7);
Tailwind
colors: {
custom: {
50: '#648695',
500: '#1d576b',
950: '#000000',
},
}SCSS
$custom: #1d576b; $custom-light: #648695; $custom-dark: #000000;
JSON
{
"hex": "#1d576b",
"rgb": {
"r": 29,
"g": 87,
"b": 107
},
"hsl": {
"h": 195.385,
"s": 57.353,
"l": 26.667
},
"oklch": {
"l": 0.42861,
"c": 0.06724,
"h": 224.7
},
"luminance": 0.08139
}Semantic roles & 50–950 ramp
primary
#1D576B
secondary
#A05C44
accent
#6F47E1
background
#F6F8F9
surface
#EBEFF1
border
#C6CACB
text
#060B0D
muted
#7A7C7E