#10317C#10317C

#10317C is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.2% C 0.133 H 263.2°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#10317C
RGB	rgb(16, 49, 124)
HSL	hsl(222, 77%, 27%)
HSV	hsv(222, 87%, 49%)
CMYK	cmyk(87.1%, 60.5%, 0%, 51.4%)
CIE-LAB	lab(22.87, 19.18, -45.78)
CIE-LCH	lch(22.87, 49.64, 292.73°)
OKLab	oklab(34.2% -0.0158 -0.1324)
OKLCH	oklch(34.2% 0.133 263.2)
XYZ	xyz(4.9488, 3.7614, 19.5301)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10317C #7C5B10

analogous

#10677C #10317C #25107C

triadic

#10317C #7C1031 #317C10

tetradic

#10317C #7C1067 #7C5B10 #107C25

square

#10317C #7C1067 #7C5B10 #107C25

split-complementary

#10317C #7C2510 #677C10

monochromatic

#030B1B #091C46 #10317C #1746B2 #245EE3

Accessibility & contrast

On white

11.98

#10317C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#10317C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10317C

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10317C	#FFFFFF	#000000	##FFFFFF
##10317C	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C7F

Deuteranopia (green-blind)

#00327B

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #10317c;
/* rgb */ color: rgb(16, 49, 124);
/* oklch */ color: oklch(34.2% 0.133 263.2);

Tailwind

colors: {
  custom: {
    50: '#6468a3',
    500: '#10317c',
    950: '#000000',
  },
}

SCSS

$custom: #10317c;
$custom-light: #6468a3;
$custom-dark: #000000;

JSON

{
  "hex": "#10317c",
  "rgb": {
    "r": 16,
    "g": 49,
    "b": 124
  },
  "hsl": {
    "h": 221.667,
    "s": 77.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34198,
    "c": 0.13332,
    "h": 263.2
  },
  "luminance": 0.03762
}

Semantic roles & 50–950 ramp

primary

#10317C

secondary

#B28C35

accent

#B934F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#06060F

muted

#7A7A7F

Preview Lab

Preview with #10317C

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

Preview Lab → · Contrast checker → · Palette generator →