#101A57#101A57

#101A57 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.110 H 269.5°. Best body text is #FFFFFF at 16.06:1 contrast (WCAG AA passes).

Color values

HEX	#101A57
RGB	rgb(16, 26, 87)
HSL	hsl(232, 69%, 20%)
HSV	hsv(232, 82%, 34%)
CMYK	cmyk(81.6%, 70.1%, 0%, 65.9%)
CIE-LAB	lab(12.84, 20.37, -38.01)
CIE-LCH	lch(12.84, 43.12, 298.19°)
OKLab	oklab(25.67% -0.001 -0.1099)
OKLCH	oklch(25.67% 0.11 269.5)
XYZ	xyz(2.3028, 1.5368, 9.1902)
Luminance	0.0154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A57 #574D10

analogous

#103E57 #101A57 #291057

triadic

#101A57 #57101A #1A5710

tetradic

#101A57 #57103E #574D10 #105729

square

#101A57 #57103E #574D10 #105729

split-complementary

#101A57 #572910 #3E5710

monochromatic

#05081A #060B23 #101A57 #1A298B #2339BE

Accessibility & contrast

On white

16.06

#101A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#101A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A57

16.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A57	#FFFFFF	#000000	##FFFFFF
##101A57	1.00	16.06	1.31	16.06
#FFFFFF	16.06	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002559

Deuteranopia (green-blind)

#001E56

Tritanopia (blue-blind)

#002A35

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101a57;
/* rgb */ color: rgb(16, 26, 87);
/* oklch */ color: oklch(25.7% 0.110 269.5);

Tailwind

colors: {
  custom: {
    50: '#5b5687',
    500: '#101a57',
    950: '#000000',
  },
}

SCSS

$custom: #101a57;
$custom-light: #5b5687;
$custom-dark: #000000;

JSON

{
  "hex": "#101a57",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 87
  },
  "hsl": {
    "h": 231.549,
    "s": 68.932,
    "l": 20.196
  },
  "oklch": {
    "l": 0.25671,
    "c": 0.10993,
    "h": 269.5
  },
  "luminance": 0.01537
}

Semantic roles & 50–950 ramp

primary

#101A57

secondary

#908332

accent

#D33CEC

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #101A57

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

Preview Lab → · Contrast checker → · Palette generator →