#101A4F#101A4F

#101A4F is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.098 H 269.6°. Best body text is #FFFFFF at 16.37:1 contrast (WCAG AA passes).

Color values

HEX	#101A4F
RGB	rgb(16, 26, 79)
HSL	hsl(230, 66%, 19%)
HSV	hsv(230, 80%, 31%)
CMYK	cmyk(79.7%, 67.1%, 0%, 69%)
CIE-LAB	lab(12.05, 17.01, -33.86)
CIE-LCH	lch(12.05, 37.89, 296.67°)
OKLab	oklab(24.84% -0.0007 -0.0978)
OKLCH	oklch(24.84% 0.098 269.6)
XYZ	xyz(1.9939, 1.4133, 7.5633)
Luminance	0.0141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A4F #4F4510

analogous

#10394F #101A4F #25104F

triadic

#101A4F #4F101A #1A4F10

tetradic

#101A4F #4F1039 #4F4510 #104F25

square

#101A4F #4F1039 #4F4510 #104F25

split-complementary

#101A4F #4F2510 #394F10

monochromatic

#050819 #06091C #101A4F #1A2B82 #253BB5

Accessibility & contrast

On white

16.37

#101A4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101A4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A4F

16.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A4F	#FFFFFF	#000000	##FFFFFF
##101A4F	1.00	16.37	1.28	16.37
#FFFFFF	16.37	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002351

Deuteranopia (green-blind)

#001D4E

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #101a4f;
/* rgb */ color: rgb(16, 26, 79);
/* oklch */ color: oklch(24.8% 0.098 269.6);

Tailwind

colors: {
  custom: {
    50: '#595681',
    500: '#101a4f',
    950: '#000000',
  },
}

SCSS

$custom: #101a4f;
$custom-light: #595681;
$custom-dark: #000000;

JSON

{
  "hex": "#101a4f",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 79
  },
  "hsl": {
    "h": 230.476,
    "s": 66.316,
    "l": 18.627
  },
  "oklch": {
    "l": 0.2484,
    "c": 0.09777,
    "h": 269.6
  },
  "luminance": 0.01413
}

Semantic roles & 50–950 ramp

primary

#101A4F

secondary

#897B32

accent

#CE3FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101A4F

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

Preview Lab → · Contrast checker → · Palette generator →