#10318D#10318D

#10318D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.8% C 0.157 H 264.4°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#10318D
RGB	rgb(16, 49, 141)
HSL	hsl(224, 80%, 31%)
HSV	hsv(224, 89%, 55%)
CMYK	cmyk(88.7%, 65.2%, 0%, 44.7%)
CIE-LAB	lab(24.41, 26.18, -53.90)
CIE-LCH	lch(24.41, 59.92, 295.91°)
OKLab	oklab(35.83% -0.0154 -0.1562)
OKLCH	oklch(35.83% 0.157 264.4)
XYZ	xyz(6.1180, 4.2291, 25.6880)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10318D #8D6C10

analogous

#106F8D #10318D #2D108D

triadic

#10318D #8D1031 #318D10

tetradic

#10318D #8D106F #8D6C10 #108D2D

square

#10318D #8D106F #8D6C10 #108D2D

split-complementary

#10318D #8D2D10 #6F8D10

monochromatic

#040B1F #0A1E56 #10318D #1644C4 #3060E7

Accessibility & contrast

On white

11.38

#10318D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#10318D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10318D

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10318D	#FFFFFF	#000000	##FFFFFF
##10318D	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004090

Deuteranopia (green-blind)

#00348B

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #10318d;
/* rgb */ color: rgb(16, 49, 141);
/* oklch */ color: oklch(35.8% 0.157 264.4);

Tailwind

colors: {
  custom: {
    50: '#6968af',
    500: '#10318d',
    950: '#000000',
  },
}

SCSS

$custom: #10318d;
$custom-light: #6968af;
$custom-dark: #000000;

JSON

{
  "hex": "#10318d",
  "rgb": {
    "r": 16,
    "g": 49,
    "b": 141
  },
  "hsl": {
    "h": 224.16,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3583,
    "c": 0.15692,
    "h": 264.4
  },
  "luminance": 0.0423
}

Semantic roles & 50–950 ramp

primary

#10318D

secondary

#C29D37

accent

#C232F6

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080610

muted

#7A7A7F

Preview Lab

Preview with #10318D

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

Preview Lab → · Contrast checker → · Palette generator →