#101A5F#101A5F

#101A5F is a dark, vivid blue. Relative luminance 0.017; OKLCH L 26.5% C 0.122 H 269.2°. Best body text is #FFFFFF at 15.73:1 contrast (WCAG AA passes).

Color values

HEX	#101A5F
RGB	rgb(16, 26, 95)
HSL	hsl(232, 71%, 22%)
HSV	hsv(232, 83%, 37%)
CMYK	cmyk(83.2%, 72.6%, 0%, 62.7%)
CIE-LAB	lab(13.68, 23.65, -42.00)
CIE-LCH	lch(13.68, 48.20, 299.38°)
OKLab	oklab(26.54% -0.0017 -0.1216)
OKLCH	oklch(26.54% 0.122 269.2)
XYZ	xyz(2.6479, 1.6749, 11.0080)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A5F #5F5510

analogous

#10425F #101A5F #2E105F

triadic

#101A5F #5F101A #1A5F10

tetradic

#101A5F #5F1042 #5F5510 #105F2E

square

#101A5F #5F1042 #5F5510 #105F2E

split-complementary

#101A5F #5F2E10 #425F10

monochromatic

#04071A #070C2B #101A5F #192893 #2237C8

Accessibility & contrast

On white

15.73

#101A5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#101A5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A5F

15.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A5F	#FFFFFF	#000000	##FFFFFF
##101A5F	1.00	15.73	1.34	15.73
#FFFFFF	15.73	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002761

Deuteranopia (green-blind)

#001F5E

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #101a5f;
/* rgb */ color: rgb(16, 26, 95);
/* oklch */ color: oklch(26.5% 0.122 269.2);

Tailwind

colors: {
  custom: {
    50: '#5e568d',
    500: '#101a5f',
    950: '#000000',
  },
}

SCSS

$custom: #101a5f;
$custom-light: #5e568d;
$custom-dark: #000000;

JSON

{
  "hex": "#101a5f",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 95
  },
  "hsl": {
    "h": 232.405,
    "s": 71.171,
    "l": 21.765
  },
  "oklch": {
    "l": 0.26539,
    "c": 0.12161,
    "h": 269.2
  },
  "luminance": 0.01675
}

Semantic roles & 50–950 ramp

primary

#101A5F

secondary

#988B33

accent

#D73AEE

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #101A5F

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

Preview Lab → · Contrast checker → · Palette generator →