#1B819E#1B819E

#1B819E is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.2% C 0.097 H 222.5°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B819E
RGB	rgb(27, 129, 158)
HSL	hsl(193, 71%, 36%)
HSV	hsv(193, 83%, 62%)
CMYK	cmyk(82.9%, 18.4%, 0%, 38%)
CIE-LAB	lab(49.98, -17.40, -23.42)
CIE-LCH	lch(49.98, 29.17, 233.39°)
OKLab	oklab(56.16% -0.0716 -0.0657)
OKLCH	oklch(56.16% 0.097 222.5)
XYZ	xyz(14.4712, 18.4003, 35.1300)
Luminance	0.1840 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B819E #9E381B

analogous

#1B9E7A #1B819E #1B409E

triadic

#1B819E #9E1B81 #819E1B

tetradic

#1B819E #7A1B9E #9E381B #409E1B

square

#1B819E #7A1B9E #9E381B #409E1B

split-complementary

#1B819E #9E1B40 #9E7A1B

monochromatic

#092C35 #12566A #1B819E #24ACD2 #52C2E1

Accessibility & contrast

On white

4.49

#1B819E on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#1B819E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B819E

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B819E	#FFFFFF	#000000	##000000
##1B819E	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707E9F

Deuteranopia (green-blind)

#5F729E

Tritanopia (blue-blind)

#008A8A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #1b819e;
/* rgb */ color: rgb(27, 129, 158);
/* oklch */ color: oklch(56.2% 0.097 222.5);

Tailwind

colors: {
  custom: {
    50: '#70a5ba',
    500: '#1b819e',
    950: '#000000',
  },
}

SCSS

$custom: #1b819e;
$custom-light: #70a5ba;
$custom-dark: #000000;

JSON

{
  "hex": "#1b819e",
  "rgb": {
    "r": 27,
    "g": 129,
    "b": 158
  },
  "hsl": {
    "h": 193.282,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.5616,
    "c": 0.09713,
    "h": 222.5
  },
  "luminance": 0.18402
}

Semantic roles & 50–950 ramp

primary

#1B819E

secondary

#C46A51

accent

#623AEE

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1B819E

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

Preview Lab → · Contrast checker → · Palette generator →