#1C91AB#1C91AB

#1C91AB is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 60.8% C 0.103 H 217.5°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#1C91AB
RGB	rgb(28, 145, 171)
HSL	hsl(191, 72%, 39%)
HSV	hsv(191, 84%, 67%)
CMYK	cmyk(83.6%, 15.2%, 0%, 32.9%)
CIE-LAB	lab(55.52, -21.39, -22.39)
CIE-LCH	lch(55.52, 30.97, 226.31°)
OKLab	oklab(60.79% -0.0815 -0.0626)
OKLCH	oklch(60.79% 0.103 217.5)
XYZ	xyz(17.9518, 23.4357, 42.0976)
Luminance	0.2344 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C91AB #AB361C

analogous

#1CAB7E #1C91AB #1C4AAB

triadic

#1C91AB #AB1C91 #91AB1C

tetradic

#1C91AB #7E1CAB #AB361C #4AAB1C

square

#1C91AB #7E1CAB #AB361C #4AAB1C

split-complementary

#1C91AB #AB1C4A #AB7E1C

monochromatic

#0B3842 #136476 #1C91AB #28BBDC #5DCCE4

Accessibility & contrast

On white

3.69

#1C91AB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#1C91AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1C91AB

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C91AB	#FFFFFF	#000000	##000000
##1C91AB	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)

#808DAC

Deuteranopia (green-blind)

#6E7FAB

Tritanopia (blue-blind)

#009A99

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #1c91ab;
/* rgb */ color: rgb(28, 145, 171);
/* oklch */ color: oklch(60.8% 0.103 217.5);

Tailwind

colors: {
  custom: {
    50: '#74b1c4',
    500: '#1c91ab',
    950: '#000000',
  },
}

SCSS

$custom: #1c91ab;
$custom-light: #74b1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#1c91ab",
  "rgb": {
    "r": 28,
    "g": 145,
    "b": 171
  },
  "hsl": {
    "h": 190.909,
    "s": 71.859,
    "l": 39.02
  },
  "oklch": {
    "l": 0.60792,
    "c": 0.1028,
    "h": 217.5
  },
  "luminance": 0.23438
}

Semantic roles & 50–950 ramp

primary

#1C91AB

secondary

#C96E5A

accent

#5A39EF

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #1C91AB

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

Preview Lab → · Contrast checker → · Palette generator →