#101A5A#101A5A

#101A5A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.114 H 269.4°. Best body text is #FFFFFF at 15.94:1 contrast (WCAG AA passes).

Color values

HEX	#101A5A
RGB	rgb(16, 26, 90)
HSL	hsl(232, 70%, 21%)
HSV	hsv(232, 82%, 35%)
CMYK	cmyk(82.2%, 71.1%, 0%, 64.7%)
CIE-LAB	lab(13.15, 21.61, -39.52)
CIE-LCH	lch(13.15, 45.04, 298.67°)
OKLab	oklab(25.99% -0.0012 -0.1144)
OKLCH	oklch(25.99% 0.114 269.4)
XYZ	xyz(2.4279, 1.5869, 9.8492)
Luminance	0.0159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A5A #5A5010

analogous

#103F5A #101A5A #2B105A

triadic

#101A5A #5A101A #1A5A10

tetradic

#101A5A #5A103F #5A5010 #105A2B

square

#101A5A #5A103F #5A5010 #105A2B

split-complementary

#101A5A #5A2B10 #3F5A10

monochromatic

#05081A #070B26 #101A5A #19298E #2238C2

Accessibility & contrast

On white

15.94

#101A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#101A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A5A

15.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A5A	#FFFFFF	#000000	##FFFFFF
##101A5A	1.00	15.94	1.32	15.94
#FFFFFF	15.94	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255C

Deuteranopia (green-blind)

#001E59

Tritanopia (blue-blind)

#002B37

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #101a5a;
/* rgb */ color: rgb(16, 26, 90);
/* oklch */ color: oklch(26.0% 0.114 269.4);

Tailwind

colors: {
  custom: {
    50: '#5c5689',
    500: '#101a5a',
    950: '#000000',
  },
}

SCSS

$custom: #101a5a;
$custom-light: #5c5689;
$custom-dark: #000000;

JSON

{
  "hex": "#101a5a",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 90
  },
  "hsl": {
    "h": 231.892,
    "s": 69.811,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25992,
    "c": 0.11437,
    "h": 269.4
  },
  "luminance": 0.01587
}

Semantic roles & 50–950 ramp

primary

#101A5A

secondary

#938633

accent

#D53BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #101A5A

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

Preview Lab → · Contrast checker → · Palette generator →