#1F859F#1F859F

#1F859F is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.3% C 0.096 H 219.7°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#1F859F
RGB	rgb(31, 133, 159)
HSL	hsl(192, 67%, 37%)
HSV	hsv(192, 81%, 62%)
CMYK	cmyk(80.5%, 16.4%, 0%, 37.6%)
CIE-LAB	lab(51.34, -18.84, -21.89)
CIE-LCH	lch(51.34, 28.88, 229.29°)
OKLab	oklab(57.29% -0.0737 -0.0613)
OKLCH	oklch(57.29% 0.096 219.7)
XYZ	xyz(15.2080, 19.5677, 35.7696)
Luminance	0.1957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F859F #9F391F

analogous

#1F9F79 #1F859F #1F459F

triadic

#1F859F #9F1F85 #859F1F

tetradic

#1F859F #791F9F #9F391F #459F1F

square

#1F859F #791F9F #9F391F #459F1F

split-complementary

#1F859F #9F1F45 #9F791F

monochromatic

#0B2F39 #155A6C #1F859F #29B0D2 #5AC4DF

Accessibility & contrast

On white

4.27

#1F859F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#1F859F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1F859F

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F859F	#FFFFFF	#000000	##000000
##1F859F	1.00	4.27	4.91	4.91
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7581A0

Deuteranopia (green-blind)

#64759F

Tritanopia (blue-blind)

#008D8D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #1f859f;
/* rgb */ color: rgb(31, 133, 159);
/* oklch */ color: oklch(57.3% 0.096 219.7);

Tailwind

colors: {
  custom: {
    50: '#71a8bb',
    500: '#1f859f',
    950: '#000000',
  },
}

SCSS

$custom: #1f859f;
$custom-light: #71a8bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1f859f",
  "rgb": {
    "r": 31,
    "g": 133,
    "b": 159
  },
  "hsl": {
    "h": 192.188,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.57291,
    "c": 0.09584,
    "h": 219.7
  },
  "luminance": 0.1957
}

Semantic roles & 50–950 ramp

primary

#1F859F

secondary

#C36D57

accent

#613EEA

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1F859F

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

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