#10305A#10305A

#10305A is a dark, moderate cyan. Relative luminance 0.030; OKLCH L 31.1% C 0.084 H 256.5°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#10305A
RGB	rgb(16, 48, 90)
HSL	hsl(214, 70%, 21%)
HSV	hsv(214, 82%, 35%)
CMYK	cmyk(82.2%, 46.7%, 0%, 64.7%)
CIE-LAB	lab(19.89, 5.31, -28.59)
CIE-LCH	lch(19.89, 29.08, 280.53°)
OKLab	oklab(31.08% -0.0196 -0.0819)
OKLCH	oklch(31.08% 0.084 256.5)
XYZ	xyz(3.1154, 2.9619, 10.0784)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10305A #5A3A10

analogous

#10555A #10305A #15105A

triadic

#10305A #5A1030 #305A10

tetradic

#10305A #5A1055 #5A3A10 #105A15

square

#10305A #5A1055 #5A3A10 #105A15

split-complementary

#10305A #5A1510 #555A10

monochromatic

#050E1A #071426 #10305A #194C8E #2267C2

Accessibility & contrast

On white

13.19

#10305A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#10305A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10305A

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10305A	#FFFFFF	#000000	##FFFFFF
##10305A	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B345C

Deuteranopia (green-blind)

#0D2D59

Tritanopia (blue-blind)

#003A40

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #10305a;
/* rgb */ color: rgb(16, 48, 90);
/* oklch */ color: oklch(31.1% 0.084 256.5);

Tailwind

colors: {
  custom: {
    50: '#5b6789',
    500: '#10305a',
    950: '#000000',
  },
}

SCSS

$custom: #10305a;
$custom-light: #5b6789;
$custom-dark: #000000;

JSON

{
  "hex": "#10305a",
  "rgb": {
    "r": 16,
    "g": 48,
    "b": 90
  },
  "hsl": {
    "h": 214.054,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31084,
    "c": 0.08416,
    "h": 256.5
  },
  "luminance": 0.02962
}

Semantic roles & 50–950 ramp

primary

#10305A

secondary

#936933

accent

#A03BED

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #10305A

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

Preview Lab → · Contrast checker → · Palette generator →