#3671AB#3671AB
#3671AB is a mid, moderate cyan. Relative luminance 0.155; OKLCH L 53.7% C 0.110 H 250.3°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).
Color values
| HEX | #3671AB |
|---|---|
| RGB | rgb(54, 113, 171) |
| HSL | hsl(210, 52%, 44%) |
| HSV | hsv(210, 68%, 67%) |
| CMYK | cmyk(68.4%, 33.9%, 0%, 32.9%) |
| CIE-LAB | lab(46.36, 0.06, -36.61) |
| CIE-LCH | lch(46.36, 36.61, 270.10°) |
| OKLab | oklab(53.68% -0.0372 -0.1038) |
| OKLCH | oklch(53.68% 0.11 250.3) |
| XYZ | xyz(14.7744, 15.5333, 40.7398) |
| Luminance | 0.1553 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Flat Blue
#3C73A8
ΔE00 0.93
Muted Blue
#3B719F
ΔE00 1.82
Medium Blue
#2C6FBB
ΔE00 1.95
Bluish
#2976BB
ΔE00 2.57
Mid Blue
#276AB3
ΔE00 2.72
Dull Blue
#49759C
ΔE00 3.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3671AB #AB7036
analogous
#36ABAB #3671AB #3636AB
triadic
#3671AB #AB3671 #71AB36
tetradic
#3671AB #AB36AB #AB7036 #36AB36
square
#3671AB #AB36AB #AB7036 #36AB36
split-complementary
#3671AB #AB3636 #ABAB36
monochromatic
#19344E #27527C #3671AB #5590C9 #83AED8
Accessibility & contrast
On white
5.11
#3671AB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.11
#3671AB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #3671AB
5.11:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3671AB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3671AB | 1.00 | 5.11 | 4.11 | 5.11 |
| #FFFFFF | 5.11 | 1.00 | 21.00 | 1.00 |
| #000000 | 4.11 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.11 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5774AD
Deuteranopia (green-blind)
#4769AA
Tritanopia (blue-blind)
#007F86
Achromatopsia (no color)
#6E6E6E
Design tokens & code
CSS
--color: #3671ab; /* rgb */ color: rgb(54, 113, 171); /* oklch */ color: oklch(53.7% 0.110 250.3);
Tailwind
colors: {
custom: {
50: '#7a99c4',
500: '#3671ab',
950: '#000000',
},
}SCSS
$custom: #3671ab; $custom-light: #7a99c4; $custom-dark: #000000;
JSON
{
"hex": "#3671ab",
"rgb": {
"r": 54,
"g": 113,
"b": 171
},
"hsl": {
"h": 209.744,
"s": 52,
"l": 44.118
},
"oklch": {
"l": 0.53677,
"c": 0.11023,
"h": 250.3
},
"luminance": 0.15535
}Semantic roles & 50–950 ramp
primary
#3671AB
secondary
#C29E7B
accent
#934CDB
background
#F7F9FC
surface
#EEF2F8
border
#C9CCD1
text
#0A0D12
muted
#7C7E81