#1F809B#1F809B

#1F809B is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 55.8% C 0.094 H 221.5°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#1F809B
RGB	rgb(31, 128, 155)
HSL	hsl(193, 67%, 36%)
HSV	hsv(193, 80%, 61%)
CMYK	cmyk(80%, 17.4%, 0%, 39.2%)
CIE-LAB	lab(49.61, -17.51, -22.23)
CIE-LCH	lch(49.61, 28.29, 231.78°)
OKLab	oklab(55.84% -0.0704 -0.0623)
OKLCH	oklch(55.84% 0.094 221.5)
XYZ	xyz(14.1982, 18.0945, 33.7483)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F809B #9B3A1F

analogous

#1F9B78 #1F809B #1F429B

triadic

#1F809B #9B1F80 #809B1F

tetradic

#1F809B #781F9B #9B3A1F #429B1F

square

#1F809B #781F9B #9B3A1F #429B1F

split-complementary

#1F809B #9B1F42 #9B781F

monochromatic

#0B2C35 #155668 #1F809B #29AACE #57C0DD

Accessibility & contrast

On white

4.55

#1F809B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#1F809B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F809B

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F809B	#FFFFFF	#000000	##000000
##1F809B	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9C

Deuteranopia (green-blind)

#60719B

Tritanopia (blue-blind)

#008989

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #1f809b;
/* rgb */ color: rgb(31, 128, 155);
/* oklch */ color: oklch(55.8% 0.094 221.5);

Tailwind

colors: {
  custom: {
    50: '#70a5b8',
    500: '#1f809b',
    950: '#000000',
  },
}

SCSS

$custom: #1f809b;
$custom-light: #70a5b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1f809b",
  "rgb": {
    "r": 31,
    "g": 128,
    "b": 155
  },
  "hsl": {
    "h": 193.065,
    "s": 66.667,
    "l": 36.471
  },
  "oklch": {
    "l": 0.55844,
    "c": 0.09395,
    "h": 221.5
  },
  "luminance": 0.18096
}

Semantic roles & 50–950 ramp

primary

#1F809B

secondary

#C16C55

accent

#643EEA

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1F809B

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

Preview Lab → · Contrast checker → · Palette generator →