#101C5E#101C5E

#101C5E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.8% C 0.118 H 268.6°. Best body text is #FFFFFF at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#101C5E
RGB	rgb(16, 28, 94)
HSL	hsl(231, 71%, 22%)
HSV	hsv(231, 83%, 37%)
CMYK	cmyk(83%, 70.2%, 0%, 63.1%)
CIE-LAB	lab(14.11, 21.81, -40.63)
CIE-LCH	lch(14.11, 46.11, 298.23°)
OKLab	oklab(26.82% -0.0028 -0.1176)
OKLCH	oklch(26.82% 0.118 268.6)
XYZ	xyz(2.6486, 1.7485, 10.7854)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C5E #5E5210

analogous

#10435E #101C5E #2B105E

triadic

#101C5E #5E101C #1C5E10

tetradic

#101C5E #5E1043 #5E5210 #105E2B

square

#101C5E #5E1043 #5E5210 #105E2B

split-complementary

#101C5E #5E2B10 #435E10

monochromatic

#04081A #070C2A #101C5E #192C92 #223BC7

Accessibility & contrast

On white

15.56

#101C5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#101C5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C5E

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C5E	#FFFFFF	#000000	##FFFFFF
##101C5E	1.00	15.56	1.35	15.56
#FFFFFF	15.56	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002860

Deuteranopia (green-blind)

#00205D

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #101c5e;
/* rgb */ color: rgb(16, 28, 94);
/* oklch */ color: oklch(26.8% 0.118 268.6);

Tailwind

colors: {
  custom: {
    50: '#5d588c',
    500: '#101c5e',
    950: '#000000',
  },
}

SCSS

$custom: #101c5e;
$custom-light: #5d588c;
$custom-dark: #000000;

JSON

{
  "hex": "#101c5e",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 94
  },
  "hsl": {
    "h": 230.769,
    "s": 70.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26819,
    "c": 0.11761,
    "h": 268.6
  },
  "luminance": 0.01749
}

Semantic roles & 50–950 ramp

primary

#101C5E

secondary

#978833

accent

#D23AEE

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #101C5E

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

Preview Lab → · Contrast checker → · Palette generator →