#1F839F#1F839F

#1F839F is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 56.8% C 0.096 H 221.8°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#1F839F
RGB	rgb(31, 131, 159)
HSL	hsl(193, 67%, 37%)
HSV	hsv(193, 81%, 62%)
CMYK	cmyk(80.5%, 17.6%, 0%, 37.6%)
CIE-LAB	lab(50.72, -17.75, -22.86)
CIE-LCH	lch(50.72, 28.94, 232.16°)
OKLab	oklab(56.79% -0.0717 -0.064)
OKLCH	oklch(56.79% 0.096 221.8)
XYZ	xyz(14.9367, 19.0253, 35.6792)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F839F #9F3B1F

analogous

#1F9F7B #1F839F #1F439F

triadic

#1F839F #9F1F83 #839F1F

tetradic

#1F839F #7B1F9F #9F3B1F #439F1F

square

#1F839F #7B1F9F #9F3B1F #439F1F

split-complementary

#1F839F #9F1F43 #9F7B1F

monochromatic

#0B2F39 #15596C #1F839F #29ADD2 #5AC2DF

Accessibility & contrast

On white

4.37

#1F839F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#1F839F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F839F

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F839F	#FFFFFF	#000000	##000000
##1F839F	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7380A0

Deuteranopia (green-blind)

#62739F

Tritanopia (blue-blind)

#008C8C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #1f839f;
/* rgb */ color: rgb(31, 131, 159);
/* oklch */ color: oklch(56.8% 0.096 221.8);

Tailwind

colors: {
  custom: {
    50: '#71a7bb',
    500: '#1f839f',
    950: '#000000',
  },
}

SCSS

$custom: #1f839f;
$custom-light: #71a7bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f839f",
  "rgb": {
    "r": 31,
    "g": 131,
    "b": 159
  },
  "hsl": {
    "h": 193.125,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.56787,
    "c": 0.09615,
    "h": 221.8
  },
  "luminance": 0.19027
}

Semantic roles & 50–950 ramp

primary

#1F839F

secondary

#C36F57

accent

#633EEA

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1F839F

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

Preview Lab → · Contrast checker → · Palette generator →