#10839F#10839F

#10839F is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.6% C 0.100 H 220.5°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#10839F
RGB	rgb(16, 131, 159)
HSL	hsl(192, 82%, 34%)
HSV	hsv(192, 90%, 62%)
CMYK	cmyk(89.9%, 17.6%, 0%, 37.6%)
CIE-LAB	lab(50.50, -18.97, -23.20)
CIE-LCH	lch(50.50, 29.97, 230.73°)
OKLab	oklab(56.55% -0.0761 -0.0651)
OKLCH	oklch(56.55% 0.1 220.5)
XYZ	xyz(14.5853, 18.8440, 35.6627)
Luminance	0.1885 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10839F #9F2C10

analogous

#109F74 #10839F #103C9F

triadic

#10839F #9F1083 #839F10

tetradic

#10839F #74109F #9F2C10 #3C9F10

square

#10839F #74109F #9F2C10 #3C9F10

split-complementary

#10839F #9F103C #9F7410

monochromatic

#052730 #0A5567 #10839F #16B1D7 #3ECAEC

Accessibility & contrast

On white

4.40

#10839F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#10839F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #10839F

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10839F	#FFFFFF	#000000	##000000
##10839F	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727FA0

Deuteranopia (green-blind)

#60739F

Tritanopia (blue-blind)

#008C8C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #10839f;
/* rgb */ color: rgb(16, 131, 159);
/* oklch */ color: oklch(56.6% 0.100 220.5);

Tailwind

colors: {
  custom: {
    50: '#6ea7bb',
    500: '#10839f',
    950: '#000000',
  },
}

SCSS

$custom: #10839f;
$custom-light: #6ea7bb;
$custom-dark: #000000;

JSON

{
  "hex": "#10839f",
  "rgb": {
    "r": 16,
    "g": 131,
    "b": 159
  },
  "hsl": {
    "h": 191.748,
    "s": 81.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.56554,
    "c": 0.10012,
    "h": 220.5
  },
  "luminance": 0.18846
}

Semantic roles & 50–950 ramp

primary

#10839F

secondary

#CB5B40

accent

#5730F8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F11

muted

#7B7F80

Preview Lab

Preview with #10839F

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

Preview Lab → · Contrast checker → · Palette generator →