#1D537A#1D537A
#1D537A is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.6% C 0.086 H 243.9°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).
Color values
| HEX | #1D537A |
|---|---|
| RGB | rgb(29, 83, 122) |
| HSL | hsl(205, 62%, 30%) |
| HSV | hsv(205, 76%, 48%) |
| CMYK | cmyk(76.2%, 32%, 0%, 52.2%) |
| CIE-LAB | lab(33.67, -3.42, -27.19) |
| CIE-LCH | lch(33.67, 27.40, 262.83°) |
| OKLab | oklab(42.62% -0.0377 -0.077) |
| OKLCH | oklch(42.62% 0.086 243.9) |
| XYZ | xyz(7.1114, 7.8521, 19.5494) |
| Luminance | 0.0785 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.74
Light Navy
#155084
ΔE00 2.71
Light Navy Blue
#2E5A88
ΔE00 3.81
Dusk Blue
#26538D
ΔE00 4.42
Prussian Blue
#004577
ΔE00 5.03
Dark Slate Blue
#214761
ΔE00 5.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D537A #7A441D
analogous
#1D7A72 #1D537A #1D257A
triadic
#1D537A #7A1D53 #537A1D
tetradic
#1D537A #721D7A #7A441D #257A1D
square
#1D537A #721D7A #7A441D #257A1D
split-complementary
#1D537A #7A1D25 #7A721D
monochromatic
#061119 #113149 #1D537A #2975AB #4094D2
Accessibility & contrast
On white
8.17
#1D537A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.57
#1D537A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D537A
8.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D537A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D537A | 1.00 | 8.17 | 2.57 | 8.17 |
| #FFFFFF | 8.17 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.57 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.17 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#41547C
Deuteranopia (green-blind)
#344B79
Tritanopia (blue-blind)
#005D61
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #1d537a; /* rgb */ color: rgb(29, 83, 122); /* oklch */ color: oklch(42.6% 0.086 243.9);
Tailwind
colors: {
custom: {
50: '#6783a0',
500: '#1d537a',
950: '#000000',
},
}SCSS
$custom: #1d537a; $custom-light: #6783a0; $custom-dark: #000000;
JSON
{
"hex": "#1d537a",
"rgb": {
"r": 29,
"g": 83,
"b": 122
},
"hsl": {
"h": 205.161,
"s": 61.589,
"l": 29.608
},
"oklch": {
"l": 0.42623,
"c": 0.08573,
"h": 243.9
},
"luminance": 0.07853
}Semantic roles & 50–950 ramp
primary
#1D537A
secondary
#AE7145
accent
#8743E5
background
#F6F7F9
surface
#EBEEF2
border
#C6C9CC
text
#070A0F
muted
#7A7C7E