#10364E#10364E

#10364E is a dark, moderate cyan. Relative luminance 0.033; OKLCH L 31.9% C 0.060 H 240.4°. Best body text is #FFFFFF at 12.65:1 contrast (WCAG AA passes).

Color values

HEX	#10364E
RGB	rgb(16, 54, 78)
HSL	hsl(203, 66%, 18%)
HSV	hsv(203, 79%, 31%)
CMYK	cmyk(79.5%, 30.8%, 0%, 69.4%)
CIE-LAB	lab(21.20, -3.97, -18.53)
CIE-LCH	lch(21.20, 18.95, 257.90°)
OKLab	oklab(31.87% -0.0297 -0.0523)
OKLCH	oklch(31.87% 0.06 240.4)
XYZ	xyz(2.9075, 3.2982, 7.6896)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10364E #4E2810

analogous

#104E47 #10364E #10174E

triadic

#10364E #4E1036 #364E10

tetradic

#10364E #47104E #4E2810 #174E10

square

#10364E #47104E #4E2810 #174E10

split-complementary

#10364E #4E1017 #4E4710

monochromatic

#051219 #06131B #10364E #1A5981 #257CB4

Accessibility & contrast

On white

12.65

#10364E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#10364E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10364E

12.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10364E	#FFFFFF	#000000	##FFFFFF
##10364E	1.00	12.65	1.66	12.65
#FFFFFF	12.65	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B364F

Deuteranopia (green-blind)

#22304E

Tritanopia (blue-blind)

#003C3E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #10364e;
/* rgb */ color: rgb(16, 54, 78);
/* oklch */ color: oklch(31.9% 0.060 240.4);

Tailwind

colors: {
  custom: {
    50: '#586c7f',
    500: '#10364e',
    950: '#000000',
  },
}

SCSS

$custom: #10364e;
$custom-light: #586c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#10364e",
  "rgb": {
    "r": 16,
    "g": 54,
    "b": 78
  },
  "hsl": {
    "h": 203.226,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.31872,
    "c": 0.06019,
    "h": 240.4
  },
  "luminance": 0.03299
}

Semantic roles & 50–950 ramp

primary

#10364E

secondary

#885332

accent

#813FE9

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #10364E

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

Preview Lab → · Contrast checker → · Palette generator →