#1C90B3#1C90B3

#1C90B3 is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 60.9% C 0.108 H 224.4°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#1C90B3
RGB	rgb(28, 144, 179)
HSL	hsl(194, 73%, 41%)
HSV	hsv(194, 84%, 70%)
CMYK	cmyk(84.4%, 19.6%, 0%, 29.8%)
CIE-LAB	lab(55.53, -18.10, -26.95)
CIE-LCH	lch(55.53, 32.46, 236.11°)
OKLab	oklab(60.91% -0.0774 -0.0757)
OKLCH	oklch(60.91% 0.108 224.4)
XYZ	xyz(18.5854, 23.4457, 46.1850)
Luminance	0.2345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C90B3 #B33F1C

analogous

#1CB38A #1C90B3 #1C45B3

triadic

#1C90B3 #B31C90 #90B31C

tetradic

#1C90B3 #8A1CB3 #B33F1C #45B31C

square

#1C90B3 #8A1CB3 #B33F1C #45B31C

split-complementary

#1C90B3 #B31C45 #B38A1C

monochromatic

#0B3B49 #14657E #1C90B3 #2EB5DE #63C8E7

Accessibility & contrast

On white

3.69

#1C90B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#1C90B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1C90B3

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C90B3	#FFFFFF	#000000	##000000
##1C90B3	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8DB5

Deuteranopia (green-blind)

#697FB3

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #1c90b3;
/* rgb */ color: rgb(28, 144, 179);
/* oklch */ color: oklch(60.9% 0.108 224.4);

Tailwind

colors: {
  custom: {
    50: '#75b0ca',
    500: '#1c90b3',
    950: '#000000',
  },
}

SCSS

$custom: #1c90b3;
$custom-light: #75b0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1c90b3",
  "rgb": {
    "r": 28,
    "g": 144,
    "b": 179
  },
  "hsl": {
    "h": 193.907,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.60906,
    "c": 0.10824,
    "h": 224.4
  },
  "luminance": 0.23448
}

Semantic roles & 50–950 ramp

primary

#1C90B3

secondary

#CB785F

accent

#6338F0

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1C90B3

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

Preview Lab → · Contrast checker → · Palette generator →