#1C90A9#1C90A9

#1C90A9 is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 60.5% C 0.102 H 216.9°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#1C90A9
RGB	rgb(28, 144, 169)
HSL	hsl(191, 72%, 39%)
HSV	hsv(191, 83%, 66%)
CMYK	cmyk(83.4%, 14.8%, 0%, 33.7%)
CIE-LAB	lab(55.13, -21.55, -21.85)
CIE-LCH	lch(55.13, 30.68, 225.39°)
OKLab	oklab(60.45% -0.0813 -0.0611)
OKLCH	oklch(60.45% 0.102 216.9)
XYZ	xyz(17.6105, 23.0557, 41.0505)
Luminance	0.2306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C90A9 #A9351C

analogous

#1CA97B #1C90A9 #1C49A9

triadic

#1C90A9 #A91C90 #90A91C

tetradic

#1C90A9 #7B1CA9 #A9351C #49A91C

square

#1C90A9 #7B1CA9 #A9351C #49A91C

split-complementary

#1C90A9 #A91C49 #A97B1C

monochromatic

#0B3740 #136374 #1C90A9 #27BBDB #5BCCE4

Accessibility & contrast

On white

3.74

#1C90A9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#1C90A9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1C90A9

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C90A9	#FFFFFF	#000000	##000000
##1C90A9	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808BAA

Deuteranopia (green-blind)

#6D7EA9

Tritanopia (blue-blind)

#009998

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #1c90a9;
/* rgb */ color: rgb(28, 144, 169);
/* oklch */ color: oklch(60.5% 0.102 216.9);

Tailwind

colors: {
  custom: {
    50: '#73b0c2',
    500: '#1c90a9',
    950: '#000000',
  },
}

SCSS

$custom: #1c90a9;
$custom-light: #73b0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c90a9",
  "rgb": {
    "r": 28,
    "g": 144,
    "b": 169
  },
  "hsl": {
    "h": 190.638,
    "s": 71.574,
    "l": 38.627
  },
  "oklch": {
    "l": 0.60454,
    "c": 0.10174,
    "h": 216.9
  },
  "luminance": 0.23058
}

Semantic roles & 50–950 ramp

primary

#1C90A9

secondary

#C86D59

accent

#5A39EE

background

#F7FAFB

surface

#EEF5F7

border

#C9CFD0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #1C90A9

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

Preview Lab → · Contrast checker → · Palette generator →