#1B426E#1B426E
#1B426E is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.5% C 0.088 H 253.5°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).
Color values
| HEX | #1B426E |
|---|---|
| RGB | rgb(27, 66, 110) |
| HSL | hsl(212, 61%, 27%) |
| HSV | hsv(212, 75%, 43%) |
| CMYK | cmyk(75.5%, 40%, 0%, 56.9%) |
| CIE-LAB | lab(27.45, 2.70, -29.49) |
| CIE-LCH | lch(27.45, 29.61, 275.23°) |
| OKLab | oklab(37.49% -0.0249 -0.084) |
| OKLCH | oklch(37.49% 0.088 253.5) |
| XYZ | xyz(5.2136, 5.2547, 15.4883) |
| Luminance | 0.0525 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Twilight Blue
#0A437A
ΔE00 1.92
Prussian Blue
#004577
ΔE00 2.71
Darkish Blue
#014182
ΔE00 2.85
Marine Blue
#01386A
ΔE00 3.28
Cobalt (survey)
#1E488F
ΔE00 4.69
Light Navy
#155084
ΔE00 5.30
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B426E #6E471B
analogous
#1B6C6E #1B426E #1D1B6E
triadic
#1B426E #6E1B42 #426E1B
tetradic
#1B426E #6E1B6C #6E471B #1B6E1D
square
#1B426E #6E1B6C #6E471B #1B6E1D
split-complementary
#1B426E #6E1D1B #6C6E1B
monochromatic
#060F19 #0F253D #1B426E #275F9F #367DCE
Accessibility & contrast
On white
10.24
#1B426E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.05
#1B426E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B426E
10.24:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B426E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B426E | 1.00 | 10.24 | 2.05 | 10.24 |
| #FFFFFF | 10.24 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.05 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.24 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2E4570
Deuteranopia (green-blind)
#213D6D
Tritanopia (blue-blind)
#004C52
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #1b426e; /* rgb */ color: rgb(27, 66, 110); /* oklch */ color: oklch(37.5% 0.088 253.5);
Tailwind
colors: {
custom: {
50: '#637698',
500: '#1b426e',
950: '#000000',
},
}SCSS
$custom: #1b426e; $custom-light: #637698; $custom-dark: #000000;
JSON
{
"hex": "#1b426e",
"rgb": {
"r": 27,
"g": 66,
"b": 110
},
"hsl": {
"h": 211.807,
"s": 60.584,
"l": 26.863
},
"oklch": {
"l": 0.37494,
"c": 0.08762,
"h": 253.5
},
"luminance": 0.05255
}Semantic roles & 50–950 ramp
primary
#1B426E
secondary
#A37542
accent
#9944E4
background
#F6F7F9
surface
#EBEDF2
border
#C6C8CC
text
#06080D
muted
#7A7B7E