#10405D#10405D

#10405D is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.5% C 0.071 H 240.2°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#10405D
RGB	rgb(16, 64, 93)
HSL	hsl(203, 71%, 21%)
HSV	hsv(203, 83%, 36%)
CMYK	cmyk(82.8%, 31.2%, 0%, 63.5%)
CIE-LAB	lab(25.46, -4.48, -21.73)
CIE-LCH	lch(25.46, 22.18, 258.34°)
OKLab	oklab(35.52% -0.0352 -0.0615)
OKLCH	oklch(35.52% 0.071 240.2)
XYZ	xyz(4.0221, 4.5668, 11.0233)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10405D #5D2D10

analogous

#105D54 #10405D #101A5D

triadic

#10405D #5D1040 #405D10

tetradic

#10405D #54105D #5D2D10 #1A5D10

square

#10405D #54105D #5D2D10 #1A5D10

split-complementary

#10405D #5D101A #5D5410

monochromatic

#04121A #071C29 #10405D #196491 #2288C5

Accessibility & contrast

On white

10.98

#10405D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#10405D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10405D

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10405D	#FFFFFF	#000000	##FFFFFF
##10405D	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32405E

Deuteranopia (green-blind)

#28395C

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #10405d;
/* rgb */ color: rgb(16, 64, 93);
/* oklch */ color: oklch(35.5% 0.071 240.2);

Tailwind

colors: {
  custom: {
    50: '#5c748b',
    500: '#10405d',
    950: '#000000',
  },
}

SCSS

$custom: #10405d;
$custom-light: #5c748b;
$custom-dark: #000000;

JSON

{
  "hex": "#10405d",
  "rgb": {
    "r": 16,
    "g": 64,
    "b": 93
  },
  "hsl": {
    "h": 202.597,
    "s": 70.642,
    "l": 21.373
  },
  "oklch": {
    "l": 0.35516,
    "c": 0.07085,
    "h": 240.2
  },
  "luminance": 0.04567
}

Semantic roles & 50–950 ramp

primary

#10405D

secondary

#965833

accent

#7E3AED

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #10405D

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

Preview Lab → · Contrast checker → · Palette generator →