#1B91AD#1B91AD

#1B91AD is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 60.9% C 0.104 H 219.0°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B91AD
RGB	rgb(27, 145, 173)
HSL	hsl(192, 73%, 39%)
HSV	hsv(192, 84%, 68%)
CMYK	cmyk(84.4%, 16.2%, 0%, 32.2%)
CIE-LAB	lab(55.58, -20.79, -23.44)
CIE-LCH	lch(55.58, 31.33, 228.43°)
OKLab	oklab(60.87% -0.081 -0.0656)
OKLCH	oklch(60.87% 0.104 219)
XYZ	xyz(18.1170, 23.4986, 43.1079)
Luminance	0.2350 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B91AD #AD371B

analogous

#1BAD80 #1B91AD #1B48AD

triadic

#1B91AD #AD1B91 #91AD1B

tetradic

#1B91AD #801BAD #AD371B #48AD1B

square

#1B91AD #801BAD #AD371B #48AD1B

split-complementary

#1B91AD #AD1B48 #AD801B

monochromatic

#0A3843 #136578 #1B91AD #28BBDD #5DCBE6

Accessibility & contrast

On white

3.68

#1B91AD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#1B91AD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B91AD

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B91AD	#FFFFFF	#000000	##000000
##1B91AD	1.00	3.68	5.70	5.70
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#808DAE

Deuteranopia (green-blind)

#6D7FAD

Tritanopia (blue-blind)

#009A9A

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #1b91ad;
/* rgb */ color: rgb(27, 145, 173);
/* oklch */ color: oklch(60.9% 0.104 219.0);

Tailwind

colors: {
  custom: {
    50: '#74b1c5',
    500: '#1b91ad',
    950: '#000000',
  },
}

SCSS

$custom: #1b91ad;
$custom-light: #74b1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b91ad",
  "rgb": {
    "r": 27,
    "g": 145,
    "b": 173
  },
  "hsl": {
    "h": 191.507,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.60866,
    "c": 0.10424,
    "h": 219
  },
  "luminance": 0.23501
}

Semantic roles & 50–950 ramp

primary

#1B91AD

secondary

#CA705A

accent

#5B38F0

background

#F7FAFC

surface

#EEF5F8

border

#C9CFD1

text

#0A1013

muted

#7C7F82

Preview Lab

Preview with #1B91AD

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

Preview Lab → · Contrast checker → · Palette generator →