#101B54#101B54

#101B54 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.6% C 0.104 H 269.1°. Best body text is #FFFFFF at 16.07:1 contrast (WCAG AA passes).

Color values

HEX	#101B54
RGB	rgb(16, 27, 84)
HSL	hsl(230, 68%, 20%)
HSV	hsv(230, 81%, 33%)
CMYK	cmyk(81%, 67.9%, 0%, 67.1%)
CIE-LAB	lab(12.82, 18.38, -36.00)
CIE-LCH	lch(12.82, 40.42, 297.04°)
OKLab	oklab(25.56% -0.0016 -0.104)
OKLCH	oklch(25.56% 0.104 269.1)
XYZ	xyz(2.2053, 1.5339, 8.5656)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101B54 #544910

analogous

#103D54 #101B54 #271054

triadic

#101B54 #54101B #1B5410

tetradic

#101B54 #54103D #544910 #105427

square

#101B54 #54103D #544910 #105427

split-complementary

#101B54 #542710 #3D5410

monochromatic

#05081A #060A21 #101B54 #1A2C87 #243CBB

Accessibility & contrast

On white

16.07

#101B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#101B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B54

16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101B54	#FFFFFF	#000000	##FFFFFF
##101B54	1.00	16.07	1.31	16.07
#FFFFFF	16.07	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002456

Deuteranopia (green-blind)

#001E53

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101b54;
/* rgb */ color: rgb(16, 27, 84);
/* oklch */ color: oklch(25.6% 0.104 269.1);

Tailwind

colors: {
  custom: {
    50: '#5a5785',
    500: '#101b54',
    950: '#000000',
  },
}

SCSS

$custom: #101b54;
$custom-light: #5a5785;
$custom-dark: #000000;

JSON

{
  "hex": "#101b54",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 84
  },
  "hsl": {
    "h": 230.294,
    "s": 68,
    "l": 19.608
  },
  "oklch": {
    "l": 0.25564,
    "c": 0.10406,
    "h": 269.1
  },
  "luminance": 0.01534
}

Semantic roles & 50–950 ramp

primary

#101B54

secondary

#8E7F32

accent

#CF3DEB

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #101B54

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

Preview Lab → · Contrast checker → · Palette generator →