#101A5B#101A5B

#101A5B is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.116 H 269.3°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#101A5B
RGB	rgb(16, 26, 91)
HSL	hsl(232, 70%, 21%)
HSV	hsv(232, 82%, 36%)
CMYK	cmyk(82.4%, 71.4%, 0%, 64.3%)
CIE-LAB	lab(13.25, 22.02, -40.02)
CIE-LCH	lch(13.25, 45.68, 298.82°)
OKLab	oklab(26.1% -0.0013 -0.1158)
OKLCH	oklch(26.1% 0.116 269.3)
XYZ	xyz(2.4708, 1.6040, 10.0749)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A5B #5B5110

analogous

#103F5B #101A5B #2B105B

triadic

#101A5B #5B101A #1A5B10

tetradic

#101A5B #5B103F #5B5110 #105B2B

square

#101A5B #5B103F #5B5110 #105B2B

split-complementary

#101A5B #5B2B10 #3F5B10

monochromatic

#05071A #070B27 #101A5B #19298F #2238C3

Accessibility & contrast

On white

15.90

#101A5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#101A5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A5B

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A5B	#FFFFFF	#000000	##FFFFFF
##101A5B	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265D

Deuteranopia (green-blind)

#001F5A

Tritanopia (blue-blind)

#002B38

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #101a5b;
/* rgb */ color: rgb(16, 26, 91);
/* oklch */ color: oklch(26.1% 0.116 269.3);

Tailwind

colors: {
  custom: {
    50: '#5d568a',
    500: '#101a5b',
    950: '#000000',
  },
}

SCSS

$custom: #101a5b;
$custom-light: #5d568a;
$custom-dark: #000000;

JSON

{
  "hex": "#101a5b",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 91
  },
  "hsl": {
    "h": 232,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.261,
    "c": 0.11583,
    "h": 269.3
  },
  "luminance": 0.01604
}

Semantic roles & 50–950 ramp

primary

#101A5B

secondary

#948733

accent

#D53BED

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #101A5B

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

Preview Lab → · Contrast checker → · Palette generator →