#10366E#10366E

#10366E is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.1% C 0.106 H 258.6°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#10366E
RGB	rgb(16, 54, 110)
HSL	hsl(216, 75%, 25%)
HSV	hsv(216, 85%, 43%)
CMYK	cmyk(85.5%, 50.9%, 0%, 56.9%)
CIE-LAB	lab(23.25, 9.62, -36.23)
CIE-LCH	lch(23.25, 37.49, 284.87°)
OKLab	oklab(34.13% -0.021 -0.1042)
OKLCH	oklch(34.13% 0.106 258.6)
XYZ	xyz(4.3463, 3.8738, 15.2675)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10366E #6E4810

analogous

#10656E #10366E #19106E

triadic

#10366E #6E1036 #366E10

tetradic

#10366E #6E1065 #6E4810 #106E19

square

#10366E #6E1065 #6E4810 #106E19

split-complementary

#10366E #6E1910 #656E10

monochromatic

#040D1B #081C39 #10366E #1850A3 #206AD9

Accessibility & contrast

On white

11.83

#10366E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#10366E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10366E

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10366E	#FFFFFF	#000000	##FFFFFF
##10366E	1.00	11.83	1.77	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153C70

Deuteranopia (green-blind)

#00336D

Tritanopia (blue-blind)

#00434C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #10366e;
/* rgb */ color: rgb(16, 54, 110);
/* oklch */ color: oklch(34.1% 0.106 258.6);

Tailwind

colors: {
  custom: {
    50: '#606c98',
    500: '#10366e',
    950: '#000000',
  },
}

SCSS

$custom: #10366e;
$custom-light: #606c98;
$custom-dark: #000000;

JSON

{
  "hex": "#10366e",
  "rgb": {
    "r": 16,
    "g": 54,
    "b": 110
  },
  "hsl": {
    "h": 215.745,
    "s": 74.603,
    "l": 24.706
  },
  "oklch": {
    "l": 0.34134,
    "c": 0.1063,
    "h": 258.6
  },
  "luminance": 0.03874
}

Semantic roles & 50–950 ramp

primary

#10366E

secondary

#A67834

accent

#A637F1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#05060E

muted

#7A7A7E

Preview Lab

Preview with #10366E

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

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