#101C4E#101C4E

#101C4E is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.093 H 268.5°. Best body text is #FFFFFF at 16.18:1 contrast (WCAG AA passes).

Color values

HEX	#101C4E
RGB	rgb(16, 28, 78)
HSL	hsl(228, 66%, 18%)
HSV	hsv(228, 79%, 31%)
CMYK	cmyk(79.5%, 64.1%, 0%, 69.4%)
CIE-LAB	lab(12.55, 15.07, -32.36)
CIE-LCH	lch(12.55, 35.69, 294.98°)
OKLab	oklab(25.18% -0.0024 -0.0933)
OKLCH	oklch(25.18% 0.093 268.5)
XYZ	xyz(2.0036, 1.4905, 7.3884)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.45

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101C4E #4E4210

analogous

#103B4E #101C4E #23104E

triadic

#101C4E #4E101C #1C4E10

tetradic

#101C4E #4E103B #4E4210 #104E23

square

#101C4E #4E103B #4E4210 #104E23

split-complementary

#101C4E #4E2310 #3B4E10

monochromatic

#050919 #060A1B #101C4E #1A2E81 #2540B4

Accessibility & contrast

On white

16.18

#101C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#101C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C4E

16.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101C4E	#FFFFFF	#000000	##FFFFFF
##101C4E	1.00	16.18	1.30	16.18
#FFFFFF	16.18	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002450

Deuteranopia (green-blind)

#001E4D

Tritanopia (blue-blind)

#002831

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #101c4e;
/* rgb */ color: rgb(16, 28, 78);
/* oklch */ color: oklch(25.2% 0.093 268.5);

Tailwind

colors: {
  custom: {
    50: '#595780',
    500: '#101c4e',
    950: '#000000',
  },
}

SCSS

$custom: #101c4e;
$custom-light: #595780;
$custom-dark: #000000;

JSON

{
  "hex": "#101c4e",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 78
  },
  "hsl": {
    "h": 228.387,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25184,
    "c": 0.09336,
    "h": 268.5
  },
  "luminance": 0.01491
}

Semantic roles & 50–950 ramp

primary

#101C4E

secondary

#887732

accent

#C83FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101C4E

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

Preview Lab → · Contrast checker → · Palette generator →