#1A537B#1A537B
#1A537B is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.6% C 0.088 H 243.6°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).
Color values
| HEX | #1A537B |
|---|---|
| RGB | rgb(26, 83, 123) |
| HSL | hsl(205, 65%, 29%) |
| HSV | hsv(205, 79%, 48%) |
| CMYK | cmyk(78.9%, 32.5%, 0%, 51.8%) |
| CIE-LAB | lab(33.64, -3.45, -27.87) |
| CIE-LCH | lch(33.64, 28.08, 262.95°) |
| OKLab | oklab(42.59% -0.0391 -0.079) |
| OKLCH | oklch(42.59% 0.088 243.6) |
| XYZ | xyz(7.0930, 7.8354, 19.8736) |
| Luminance | 0.0784 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.46
Light Navy
#155084
ΔE00 2.69
Light Navy Blue
#2E5A88
ΔE00 3.89
Dusk Blue
#26538D
ΔE00 4.50
Prussian Blue
#004577
ΔE00 5.02
Dark Slate Blue
#214761
ΔE00 5.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1A537B #7B421A
analogous
#1A7B73 #1A537B #1A237B
triadic
#1A537B #7B1A53 #537B1A
tetradic
#1A537B #731A7B #7B421A #237B1A
square
#1A537B #731A7B #7B421A #237B1A
split-complementary
#1A537B #7B1A23 #7B731A
monochromatic
#051119 #0F3148 #1A537B #2575AE #3A95D5
Accessibility & contrast
On white
8.18
#1A537B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.57
#1A537B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1A537B
8.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1A537B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1A537B | 1.00 | 8.18 | 2.57 | 8.18 |
| #FFFFFF | 8.18 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.57 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.18 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#40547D
Deuteranopia (green-blind)
#334B7A
Tritanopia (blue-blind)
#005D61
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1a537b; /* rgb */ color: rgb(26, 83, 123); /* oklch */ color: oklch(42.6% 0.088 243.6);
Tailwind
colors: {
custom: {
50: '#6683a1',
500: '#1a537b',
950: '#000000',
},
}SCSS
$custom: #1a537b; $custom-light: #6683a1; $custom-dark: #000000;
JSON
{
"hex": "#1a537b",
"rgb": {
"r": 26,
"g": 83,
"b": 123
},
"hsl": {
"h": 204.742,
"s": 65.101,
"l": 29.216
},
"oklch": {
"l": 0.42587,
"c": 0.08817,
"h": 243.6
},
"luminance": 0.07836
}Semantic roles & 50–950 ramp
primary
#1A537B
secondary
#AF6F42
accent
#8540E8
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#070A0F
muted
#7A7C7E