#1D859F#1D859F

#1D859F is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.3% C 0.096 H 219.5°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#1D859F
RGB	rgb(29, 133, 159)
HSL	hsl(192, 69%, 37%)
HSV	hsv(192, 82%, 62%)
CMYK	cmyk(81.8%, 16.4%, 0%, 37.6%)
CIE-LAB	lab(51.31, -19.03, -21.94)
CIE-LCH	lch(51.31, 29.05, 229.06°)
OKLab	oklab(57.25% -0.0744 -0.0614)
OKLCH	oklch(57.25% 0.096 219.5)
XYZ	xyz(15.1496, 19.5376, 35.7668)
Luminance	0.1954 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D859F #9F371D

analogous

#1D9F78 #1D859F #1D449F

triadic

#1D859F #9F1D85 #859F1D

tetradic

#1D859F #781D9F #9F371D #449F1D

square

#1D859F #781D9F #9F371D #449F1D

split-complementary

#1D859F #9F1D44 #9F781D

monochromatic

#0A2E37 #145A6B #1D859F #26B0D3 #56C5E0

Accessibility & contrast

On white

4.28

#1D859F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#1D859F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1D859F

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D859F	#FFFFFF	#000000	##000000
##1D859F	1.00	4.28	4.91	4.91
#FFFFFF	4.28	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)

#008E8D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #1d859f;
/* rgb */ color: rgb(29, 133, 159);
/* oklch */ color: oklch(57.3% 0.096 219.5);

Tailwind

colors: {
  custom: {
    50: '#71a8bb',
    500: '#1d859f',
    950: '#000000',
  },
}

SCSS

$custom: #1d859f;
$custom-light: #71a8bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d859f",
  "rgb": {
    "r": 29,
    "g": 133,
    "b": 159
  },
  "hsl": {
    "h": 192,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.57254,
    "c": 0.09649,
    "h": 219.5
  },
  "luminance": 0.19539
}

Semantic roles & 50–950 ramp

primary

#1D859F

secondary

#C46A54

accent

#5F3CEC

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #1D859F

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

Preview Lab → · Contrast checker → · Palette generator →