#198BB4#198BB4
#198BB4 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.7% C 0.112 H 229.0°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).
Color values
| HEX | #198BB4 |
|---|---|
| RGB | rgb(25, 139, 180) |
| HSL | hsl(196, 76%, 40%) |
| HSV | hsv(196, 86%, 71%) |
| CMYK | cmyk(86.1%, 22.8%, 0%, 29.4%) |
| CIE-LAB | lab(53.99, -15.25, -29.91) |
| CIE-LCH | lch(53.99, 33.57, 242.98°) |
| OKLab | oklab(59.68% -0.0732 -0.0843) |
| OKLCH | oklch(59.68% 0.112 229) |
| XYZ | xyz(17.8683, 21.9649, 46.4691) |
| Luminance | 0.2197 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dirty Blue
#3F829D
ΔE00 4.83
Cerulean
#007BA7
ΔE00 6.08
Teal Blue
#01889F
ΔE00 6.72
Water Blue
#0E87CC
ΔE00 7.17
Steel Blue
#4682B4
ΔE00 7.48
Nice Blue
#107AB0
ΔE00 7.55
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#198BB4 #B44219
analogous
#19B48F #198BB4 #193DB4
triadic
#198BB4 #B4198B #8BB419
tetradic
#198BB4 #8F19B4 #B44219 #3DB419
square
#198BB4 #8F19B4 #B44219 #3DB419
split-complementary
#198BB4 #B4193D #B48F19
monochromatic
#0A3849 #12627E #198BB4 #29B1E1 #5FC4E9
Accessibility & contrast
On white
3.89
#198BB4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.39
#198BB4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #198BB4
5.39:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##198BB4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##198BB4 | 1.00 | 3.89 | 5.39 | 5.39 |
| #FFFFFF | 3.89 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.39 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.39 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7689B6
Deuteranopia (green-blind)
#627BB3
Tritanopia (blue-blind)
#009699
Achromatopsia (no color)
#818181
Design tokens & code
CSS
--color: #198bb4; /* rgb */ color: rgb(25, 139, 180); /* oklch */ color: oklch(59.7% 0.112 229.0);
Tailwind
colors: {
custom: {
50: '#74adca',
500: '#198bb4',
950: '#000000',
},
}SCSS
$custom: #198bb4; $custom-light: #74adca; $custom-dark: #000000;
JSON
{
"hex": "#198bb4",
"rgb": {
"r": 25,
"g": 139,
"b": 180
},
"hsl": {
"h": 195.871,
"s": 75.61,
"l": 40.196
},
"oklch": {
"l": 0.59675,
"c": 0.11164,
"h": 229
},
"luminance": 0.21967
}Semantic roles & 50–950 ramp
primary
#198BB4
secondary
#CD7A5C
accent
#6736F2
background
#F7FAFC
surface
#EEF4F8
border
#C9CED1
text
#0A1013
muted
#7C7F82