#174F8E#174F8E
#174F8E is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.7% C 0.119 H 254.5°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).
Color values
| HEX | #174F8E |
|---|---|
| RGB | rgb(23, 79, 142) |
| HSL | hsl(212, 72%, 32%) |
| HSV | hsv(212, 84%, 56%) |
| CMYK | cmyk(83.8%, 44.4%, 0%, 44.3%) |
| CIE-LAB | lab(33.41, 6.44, -39.93) |
| CIE-LCH | lch(33.41, 40.45, 279.16°) |
| OKLab | oklab(42.74% -0.0318 -0.1144) |
| OKLCH | oklch(42.74% 0.119 254.5) |
| XYZ | xyz(8.0300, 7.7261, 26.6540) |
| Luminance | 0.0773 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusk Blue
#26538D
ΔE00 1.59
Light Navy
#155084
ΔE00 1.92
Cobalt (survey)
#1E488F
ΔE00 3.17
Light Navy Blue
#2E5A88
ΔE00 3.96
Twilight Blue
#0A437A
ΔE00 4.29
Prussian Blue
#004577
ΔE00 4.31
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#174F8E #8E5617
analogous
#178A8E #174F8E #1B178E
triadic
#174F8E #8E174F #4F8E17
tetradic
#174F8E #8E178A #8E5617 #178E1B
square
#174F8E #8E178A #8E5617 #178E1B
split-complementary
#174F8E #8E1B17 #8A8E17
monochromatic
#061425 #0E3259 #174F8E #206CC3 #3F8BE0
Accessibility & contrast
On white
8.25
#174F8E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.55
#174F8E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #174F8E
8.25:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##174F8E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##174F8E | 1.00 | 8.25 | 2.55 | 8.25 |
| #FFFFFF | 8.25 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.25 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#2F5490
Deuteranopia (green-blind)
#174A8D
Tritanopia (blue-blind)
#005E67
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #174f8e; /* rgb */ color: rgb(23, 79, 142); /* oklch */ color: oklch(42.7% 0.119 254.5);
Tailwind
colors: {
custom: {
50: '#697faf',
500: '#174f8e',
950: '#000000',
},
}SCSS
$custom: #174f8e; $custom-light: #697faf; $custom-dark: #000000;
JSON
{
"hex": "#174f8e",
"rgb": {
"r": 23,
"g": 79,
"b": 142
},
"hsl": {
"h": 211.765,
"s": 72.121,
"l": 32.353
},
"oklch": {
"l": 0.42744,
"c": 0.11879,
"h": 254.5
},
"luminance": 0.07727
}Semantic roles & 50–950 ramp
primary
#174F8E
secondary
#C08440
accent
#9939EF
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F