#439FBB#439FBB
#439FBB is a light, moderate cyan. Relative luminance 0.296; OKLCH L 65.9% C 0.095 H 221.2°. Best body text is #000000 at 6.92:1 contrast (WCAG AA passes).
Color values
| HEX | #439FBB |
|---|---|
| RGB | rgb(67, 159, 187) |
| HSL | hsl(194, 47%, 50%) |
| HSV | hsv(194, 64%, 73%) |
| CMYK | cmyk(64.2%, 15%, 0%, 26.7%) |
| CIE-LAB | lab(61.29, -18.51, -22.54) |
| CIE-LCH | lch(61.29, 29.17, 230.60°) |
| OKLab | oklab(65.88% -0.0718 -0.0628) |
| OKLCH | oklch(65.88% 0.095 221.2) |
| XYZ | xyz(23.6789, 29.5749, 51.4647) |
| Luminance | 0.2958 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Greyblue
#77A1B5
ΔE00 6.91
Turquoise Blue
#06B1C4
ΔE00 7.61
Teal Blue
#01889F
ΔE00 8.96
Cadetblue
#5F9EA0
ΔE00 9.36
Bluegrey
#85A3B2
ΔE00 9.78
Dirty Blue
#3F829D
ΔE00 9.91
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#439FBB #BB5F43
analogous
#43BB9B #439FBB #4363BB
triadic
#439FBB #BB439F #9FBB43
tetradic
#439FBB #9B43BB #BB5F43 #63BB43
square
#439FBB #9B43BB #BB5F43 #63BB43
split-complementary
#439FBB #BB4363 #BB9B43
monochromatic
#235261 #33798E #439FBB #70B6CC #9DCDDC
Accessibility & contrast
On white
3.04
#439FBB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.92
#439FBB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #439FBB
6.92:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##439FBB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##439FBB | 1.00 | 3.04 | 6.92 | 6.92 |
| #FFFFFF | 3.04 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.92 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.92 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8E9BBC
Deuteranopia (green-blind)
#7D8EBB
Tritanopia (blue-blind)
#00A8A8
Achromatopsia (no color)
#949494
Design tokens & code
CSS
--color: #439fbb; /* rgb */ color: rgb(67, 159, 187); /* oklch */ color: oklch(65.9% 0.095 221.2);
Tailwind
colors: {
custom: {
50: '#84bbcf',
500: '#439fbb',
950: '#000000',
},
}SCSS
$custom: #439fbb; $custom-light: #84bbcf; $custom-dark: #000000;
JSON
{
"hex": "#439fbb",
"rgb": {
"r": 67,
"g": 159,
"b": 187
},
"hsl": {
"h": 194,
"s": 47.244,
"l": 49.804
},
"oklch": {
"l": 0.65879,
"c": 0.09536,
"h": 221.2
},
"luminance": 0.29577
}Semantic roles & 50–950 ramp
primary
#439FBB
secondary
#C89E92
accent
#7051D7
background
#F8FBFC
surface
#F0F6F9
border
#CBD0D2
text
#0C1213
muted
#7D8182