#101D53#101D53

#101D53 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.9% C 0.100 H 268.2°. Best body text is #FFFFFF at 15.88:1 contrast (WCAG AA passes).

Color values

HEX	#101D53
RGB	rgb(16, 29, 83)
HSL	hsl(228, 68%, 19%)
HSV	hsv(228, 81%, 33%)
CMYK	cmyk(80.7%, 65.1%, 0%, 67.5%)
CIE-LAB	lab(13.31, 16.45, -34.53)
CIE-LCH	lch(13.31, 38.25, 295.48°)
OKLab	oklab(25.9% -0.0032 -0.0997)
OKLCH	oklch(25.9% 0.1 268.2)
XYZ	xyz(2.2138, 1.6132, 8.3766)
Luminance	0.0161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101D53 #534610

analogous

#103F53 #101D53 #251053

triadic

#101D53 #53101D #1D5310

tetradic

#101D53 #53103F #534610 #105325

square

#101D53 #53103F #534610 #105325

split-complementary

#101D53 #532510 #3F5310

monochromatic

#05091A #060B20 #101D53 #1A2F86 #2441BA

Accessibility & contrast

On white

15.88

#101D53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#101D53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101D53

15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101D53	#FFFFFF	#000000	##FFFFFF
##101D53	1.00	15.88	1.32	15.88
#FFFFFF	15.88	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002555

Deuteranopia (green-blind)

#001F52

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #101d53;
/* rgb */ color: rgb(16, 29, 83);
/* oklch */ color: oklch(25.9% 0.100 268.2);

Tailwind

colors: {
  custom: {
    50: '#5a5884',
    500: '#101d53',
    950: '#000000',
  },
}

SCSS

$custom: #101d53;
$custom-light: #5a5884;
$custom-dark: #000000;

JSON

{
  "hex": "#101d53",
  "rgb": {
    "r": 16,
    "g": 29,
    "b": 83
  },
  "hsl": {
    "h": 228.358,
    "s": 67.677,
    "l": 19.412
  },
  "oklch": {
    "l": 0.25897,
    "c": 0.09974,
    "h": 268.2
  },
  "luminance": 0.01613
}

Semantic roles & 50–950 ramp

primary

#101D53

secondary

#8D7B32

accent

#C93DEB

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101D53

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

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