#10819F#10819F

#10819F is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.0% C 0.101 H 222.5°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#10819F
RGB	rgb(16, 129, 159)
HSL	hsl(193, 82%, 34%)
HSV	hsv(193, 90%, 62%)
CMYK	cmyk(89.9%, 18.9%, 0%, 37.6%)
CIE-LAB	lab(49.87, -17.88, -24.18)
CIE-LCH	lch(49.87, 30.07, 233.51°)
OKLab	oklab(56.05% -0.0742 -0.0679)
OKLCH	oklch(56.05% 0.101 222.5)
XYZ	xyz(14.3193, 18.3120, 35.5740)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10819F #9F2E10

analogous

#109F75 #10819F #103A9F

triadic

#10819F #9F1081 #819F10

tetradic

#10819F #75109F #9F2E10 #3A9F10

square

#10819F #75109F #9F2E10 #3A9F10

split-complementary

#10819F #9F103A #9F7510

monochromatic

#052730 #0A5467 #10819F #16AED7 #3EC7EC

Accessibility & contrast

On white

4.50

#10819F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#10819F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #10819F

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10819F	#FFFFFF	#000000	##000000
##10819F	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707EA1

Deuteranopia (green-blind)

#5E719F

Tritanopia (blue-blind)

#008A8B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #10819f;
/* rgb */ color: rgb(16, 129, 159);
/* oklch */ color: oklch(56.0% 0.101 222.5);

Tailwind

colors: {
  custom: {
    50: '#6ea5bb',
    500: '#10819f',
    950: '#000000',
  },
}

SCSS

$custom: #10819f;
$custom-light: #6ea5bb;
$custom-dark: #000000;

JSON

{
  "hex": "#10819f",
  "rgb": {
    "r": 16,
    "g": 129,
    "b": 159
  },
  "hsl": {
    "h": 192.587,
    "s": 81.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.56046,
    "c": 0.10056,
    "h": 222.5
  },
  "luminance": 0.18314
}

Semantic roles & 50–950 ramp

primary

#10819F

secondary

#CB5D40

accent

#5A30F8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #10819F

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

Preview Lab → · Contrast checker → · Palette generator →