#1D528A#1D528A
#1D528A is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.4% C 0.108 H 252.7°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).
Color values
| HEX | #1D528A |
|---|---|
| RGB | rgb(29, 82, 138) |
| HSL | hsl(211, 65%, 33%) |
| HSV | hsv(211, 79%, 54%) |
| CMYK | cmyk(79%, 40.6%, 0%, 45.9%) |
| CIE-LAB | lab(34.25, 3.52, -36.12) |
| CIE-LCH | lch(34.25, 36.29, 275.56°) |
| OKLab | oklab(43.37% -0.0321 -0.1031) |
| OKLCH | oklch(43.37% 0.108 252.7) |
| XYZ | xyz(8.1097, 8.1298, 25.1816) |
| Luminance | 0.0813 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.29
Light Navy
#155084
ΔE00 1.36
Light Navy Blue
#2E5A88
ΔE00 2.89
Deep Sea Blue
#015482
ΔE00 3.96
Cobalt (survey)
#1E488F
ΔE00 4.22
Denim Blue
#3B5B92
ΔE00 4.65
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1D528A #8A551D
analogous
#1D888A #1D528A #1F1D8A
triadic
#1D528A #8A1D52 #528A1D
tetradic
#1D528A #8A1D88 #8A551D #1D8A1F
square
#1D528A #8A1D88 #8A551D #1D8A1F
split-complementary
#1D528A #8A1F1D #888A1D
monochromatic
#081625 #123457 #1D528A #2870BD #498FD9
Accessibility & contrast
On white
8.00
#1D528A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#1D528A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1D528A
8.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1D528A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1D528A | 1.00 | 8.00 | 2.63 | 8.00 |
| #FFFFFF | 8.00 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.00 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#37568C
Deuteranopia (green-blind)
#264C89
Tritanopia (blue-blind)
#005F67
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #1d528a; /* rgb */ color: rgb(29, 82, 138); /* oklch */ color: oklch(43.4% 0.108 252.7);
Tailwind
colors: {
custom: {
50: '#6a82ac',
500: '#1d528a',
950: '#000000',
},
}SCSS
$custom: #1d528a; $custom-light: #6a82ac; $custom-dark: #000000;
JSON
{
"hex": "#1d528a",
"rgb": {
"r": 29,
"g": 82,
"b": 138
},
"hsl": {
"h": 210.826,
"s": 65.269,
"l": 32.745
},
"oklch": {
"l": 0.4337,
"c": 0.10801,
"h": 252.7
},
"luminance": 0.08131
}Semantic roles & 50–950 ramp
primary
#1D528A
secondary
#BB8348
accent
#9640E8
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F