#1D517B#1D517B
#1D517B is a dark, moderate cyan. Relative luminance 0.076; OKLCH L 42.2% C 0.089 H 246.6°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).
Color values
| HEX | #1D517B |
|---|---|
| RGB | rgb(29, 81, 123) |
| HSL | hsl(207, 62%, 30%) |
| HSV | hsv(207, 76%, 48%) |
| CMYK | cmyk(76.4%, 34.1%, 0%, 51.8%) |
| CIE-LAB | lab(33.08, -1.75, -28.74) |
| CIE-LCH | lch(33.08, 28.79, 266.52°) |
| OKLab | oklab(42.17% -0.0353 -0.0815) |
| OKLCH | oklch(42.17% 0.089 246.6) |
| XYZ | xyz(7.0229, 7.5753, 19.8271) |
| Luminance | 0.0758 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy
#155084
ΔE00 1.66
Deep Sea Blue
#015482
ΔE00 2.31
Dusk Blue
#26538D
ΔE00 3.59
Light Navy Blue
#2E5A88
ΔE00 3.67
Prussian Blue
#004577
ΔE00 4.09
Twilight Blue
#0A437A
ΔE00 5.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D517B #7B471D
analogous
#1D7B76 #1D517B #1D227B
triadic
#1D517B #7B1D51 #517B1D
tetradic
#1D517B #761D7B #7B471D #227B1D
square
#1D517B #761D7B #7B471D #227B1D
split-complementary
#1D517B #7B1D22 #7B761D
monochromatic
#061019 #113049 #1D517B #2972AD #4091D2
Accessibility & contrast
On white
8.35
#1D517B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.52
#1D517B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D517B
8.35:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D517B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D517B | 1.00 | 8.35 | 2.52 | 8.35 |
| #FFFFFF | 8.35 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.52 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.35 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3E537D
Deuteranopia (green-blind)
#314A7A
Tritanopia (blue-blind)
#005B60
Achromatopsia (no color)
#4E4E4E
Design tokens & code
CSS
--color: #1d517b; /* rgb */ color: rgb(29, 81, 123); /* oklch */ color: oklch(42.2% 0.089 246.6);
Tailwind
colors: {
custom: {
50: '#6781a1',
500: '#1d517b',
950: '#000000',
},
}SCSS
$custom: #1d517b; $custom-light: #6781a1; $custom-dark: #000000;
JSON
{
"hex": "#1d517b",
"rgb": {
"r": 29,
"g": 81,
"b": 123
},
"hsl": {
"h": 206.809,
"s": 61.842,
"l": 29.804
},
"oklch": {
"l": 0.42174,
"c": 0.08886,
"h": 246.6
},
"luminance": 0.07576
}Semantic roles & 50–950 ramp
primary
#1D517B
secondary
#AF7445
accent
#8B43E5
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#070A0F
muted
#7A7C7E