#188FB4#188FB4

#188FB4 is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.6% C 0.110 H 225.6°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#188FB4
RGB	rgb(24, 143, 180)
HSL	hsl(194, 76%, 40%)
HSV	hsv(194, 87%, 71%)
CMYK	cmyk(86.7%, 20.6%, 0%, 29.4%)
CIE-LAB	lab(55.21, -17.51, -28.02)
CIE-LCH	lch(55.21, 33.04, 238.00°)
OKLab	oklab(60.65% -0.0772 -0.0788)
OKLCH	oklch(60.65% 0.11 225.6)
XYZ	xyz(18.4339, 23.1320, 46.6645)
Luminance	0.2313 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#188FB4 #B43D18

analogous

#18B48B #188FB4 #1841B4

triadic

#188FB4 #B4188F #8FB418

tetradic

#188FB4 #8B18B4 #B43D18 #41B418

square

#188FB4 #8B18B4 #B43D18 #41B418

split-complementary

#188FB4 #B41841 #B48B18

monochromatic

#0A3948 #11647E #188FB4 #27B6E2 #5DC8E9

Accessibility & contrast

On white

3.73

#188FB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#188FB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #188FB4

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##188FB4	#FFFFFF	#000000	##000000
##188FB4	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB6

Deuteranopia (green-blind)

#677EB4

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #188fb4;
/* rgb */ color: rgb(24, 143, 180);
/* oklch */ color: oklch(60.6% 0.110 225.6);

Tailwind

colors: {
  custom: {
    50: '#74b0ca',
    500: '#188fb4',
    950: '#000000',
  },
}

SCSS

$custom: #188fb4;
$custom-light: #74b0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#188fb4",
  "rgb": {
    "r": 24,
    "g": 143,
    "b": 180
  },
  "hsl": {
    "h": 194.231,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.60647,
    "c": 0.11029,
    "h": 225.6
  },
  "luminance": 0.23134
}

Semantic roles & 50–950 ramp

primary

#188FB4

secondary

#CD765B

accent

#6235F3

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #188FB4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →