#398ACB#398ACB
#398ACB is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.4% C 0.126 H 246.2°. Best body text is #000000 at 5.67:1 contrast (WCAG AA passes).
Color values
| HEX | #398ACB |
|---|---|
| RGB | rgb(57, 138, 203) |
| HSL | hsl(207, 58%, 51%) |
| HSV | hsv(207, 72%, 80%) |
| CMYK | cmyk(71.9%, 32%, 0%, 20.4%) |
| CIE-LAB | lab(55.44, -3.03, -40.67) |
| CIE-LCH | lch(55.44, 40.79, 265.74°) |
| OKLab | oklab(61.37% -0.0508 -0.1153) |
| OKLCH | oklch(61.37% 0.126 246.2) |
| XYZ | xyz(21.5512, 23.3562, 59.8607) |
| Luminance | 0.2336 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 2.49
Cerulean (survey)
#0485D1
ΔE00 2.52
Cool Blue
#4984B8
ΔE00 3.10
Steel Blue
#4682B4
ΔE00 3.71
Dark Sky Blue
#448EE4
ΔE00 4.04
Off Blue
#5684AE
ΔE00 4.79
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#398ACB #CB7A39
analogous
#39CBC3 #398ACB #3941CB
triadic
#398ACB #CB398A #8ACB39
tetradic
#398ACB #C339CB #CB7A39 #41CB39
square
#398ACB #C339CB #CB7A39 #41CB39
split-complementary
#398ACB #CB3941 #CBC339
monochromatic
#1D496D #296A9D #398ACB #69A7D8 #9AC3E4
Accessibility & contrast
On white
3.70
#398ACB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.67
#398ACB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #398ACB
5.67:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##398ACB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##398ACB | 1.00 | 3.70 | 5.67 | 5.67 |
| #FFFFFF | 3.70 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.67 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.67 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6C8CCE
Deuteranopia (green-blind)
#587FCA
Tritanopia (blue-blind)
#009AA1
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #398acb; /* rgb */ color: rgb(57, 138, 203); /* oklch */ color: oklch(61.4% 0.126 246.2);
Tailwind
colors: {
custom: {
50: '#81abdb',
500: '#398acb',
950: '#000000',
},
}SCSS
$custom: #398acb; $custom-light: #81abdb; $custom-dark: #000000;
JSON
{
"hex": "#398acb",
"rgb": {
"r": 57,
"g": 138,
"b": 203
},
"hsl": {
"h": 206.712,
"s": 58.4,
"l": 50.98
},
"oklch": {
"l": 0.61369,
"c": 0.12599,
"h": 246.2
},
"luminance": 0.23359
}Semantic roles & 50–950 ramp
primary
#398ACB
secondary
#D0AC90
accent
#8B46E2
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83