#103681#103681

#103681 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.7% C 0.134 H 262.0°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#103681
RGB	rgb(16, 54, 129)
HSL	hsl(220, 78%, 28%)
HSV	hsv(220, 88%, 51%)
CMYK	cmyk(87.6%, 58.1%, 0%, 49.4%)
CIE-LAB	lab(24.74, 17.71, -45.88)
CIE-LCH	lch(24.74, 49.18, 291.11°)
OKLab	oklab(35.74% -0.0186 -0.1326)
OKLCH	oklch(35.74% 0.134 262)
XYZ	xyz(5.4939, 4.3328, 21.3114)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103681 #815B10

analogous

#106E81 #103681 #221081

triadic

#103681 #811036 #368110

tetradic

#103681 #81106E #815B10 #108122

square

#103681 #81106E #815B10 #108122

split-complementary

#103681 #812210 #6E8110

monochromatic

#030B1B #091F4B #103681 #174DB7 #2767E4

Accessibility & contrast

On white

11.25

#103681 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#103681 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103681

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103681	#FFFFFF	#000000	##FFFFFF
##103681	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004084

Deuteranopia (green-blind)

#003680

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #103681;
/* rgb */ color: rgb(16, 54, 129);
/* oklch */ color: oklch(35.7% 0.134 262.0);

Tailwind

colors: {
  custom: {
    50: '#656ca6',
    500: '#103681',
    950: '#000000',
  },
}

SCSS

$custom: #103681;
$custom-light: #656ca6;
$custom-dark: #000000;

JSON

{
  "hex": "#103681",
  "rgb": {
    "r": 16,
    "g": 54,
    "b": 129
  },
  "hsl": {
    "h": 219.823,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35744,
    "c": 0.13387,
    "h": 262
  },
  "luminance": 0.04333
}

Semantic roles & 50–950 ramp

primary

#103681

secondary

#B78C36

accent

#B433F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #103681

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

Preview Lab → · Contrast checker → · Palette generator →