#101B50#101B50

#101B50 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.098 H 269.1°. Best body text is #FFFFFF at 16.22:1 contrast (WCAG AA passes).

Color values

HEX	#101B50
RGB	rgb(16, 27, 80)
HSL	hsl(230, 67%, 19%)
HSV	hsv(230, 80%, 31%)
CMYK	cmyk(80%, 66.3%, 0%, 68.6%)
CIE-LAB	lab(12.44, 16.68, -33.91)
CIE-LCH	lch(12.44, 37.79, 296.20°)
OKLab	oklab(25.16% -0.0016 -0.0979)
OKLCH	oklch(25.16% 0.098 269.1)
XYZ	xyz(2.0531, 1.4730, 7.7640)
Luminance	0.0147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B50 #504510

analogous

#103B50 #101B50 #251050

triadic

#101B50 #50101B #1B5010

tetradic

#101B50 #50103B #504510 #105025

square

#101B50 #50103B #504510 #105025

split-complementary

#101B50 #502510 #3B5010

monochromatic

#05091A #060A1D #101B50 #1A2C83 #243DB6

Accessibility & contrast

On white

16.22

#101B50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#101B50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B50

16.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B50	#FFFFFF	#000000	##FFFFFF
##101B50	1.00	16.22	1.29	16.22
#FFFFFF	16.22	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002352

Deuteranopia (green-blind)

#001D4F

Tritanopia (blue-blind)

#002832

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #101b50;
/* rgb */ color: rgb(16, 27, 80);
/* oklch */ color: oklch(25.2% 0.098 269.1);

Tailwind

colors: {
  custom: {
    50: '#595782',
    500: '#101b50',
    950: '#000000',
  },
}

SCSS

$custom: #101b50;
$custom-light: #595782;
$custom-dark: #000000;

JSON

{
  "hex": "#101b50",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 80
  },
  "hsl": {
    "h": 229.688,
    "s": 66.667,
    "l": 18.824
  },
  "oklch": {
    "l": 0.25159,
    "c": 0.09791,
    "h": 269.1
  },
  "luminance": 0.01473
}

Semantic roles & 50–950 ramp

primary

#101B50

secondary

#8A7B32

accent

#CC3EEA

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #101B50

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

Preview Lab → · Contrast checker → · Palette generator →