#101A4E#101A4E

#101A4E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.096 H 269.6°. Best body text is #FFFFFF at 16.41:1 contrast (WCAG AA passes).

Color values

HEX	#101A4E
RGB	rgb(16, 26, 78)
HSL	hsl(230, 66%, 18%)
HSV	hsv(230, 79%, 31%)
CMYK	cmyk(79.5%, 66.7%, 0%, 69.4%)
CIE-LAB	lab(11.95, 16.59, -33.33)
CIE-LCH	lch(11.95, 37.23, 296.46°)
OKLab	oklab(24.74% -0.0007 -0.0962)
OKLCH	oklch(24.74% 0.096 269.6)
XYZ	xyz(1.9578, 1.3988, 7.3731)
Luminance	0.0140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101A4E #4E4410

analogous

#10394E #101A4E #25104E

triadic

#101A4E #4E101A #1A4E10

tetradic

#101A4E #4E1039 #4E4410 #104E25

square

#101A4E #4E1039 #4E4410 #104E25

split-complementary

#101A4E #4E2510 #394E10

monochromatic

#050819 #06091B #101A4E #1A2B81 #253CB4

Accessibility & contrast

On white

16.41

#101A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#101A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101A4E

16.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101A4E	#FFFFFF	#000000	##FFFFFF
##101A4E	1.00	16.41	1.28	16.41
#FFFFFF	16.41	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002250

Deuteranopia (green-blind)

#001D4D

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #101a4e;
/* rgb */ color: rgb(16, 26, 78);
/* oklch */ color: oklch(24.7% 0.096 269.6);

Tailwind

colors: {
  custom: {
    50: '#595680',
    500: '#101a4e',
    950: '#000000',
  },
}

SCSS

$custom: #101a4e;
$custom-light: #595680;
$custom-dark: #000000;

JSON

{
  "hex": "#101a4e",
  "rgb": {
    "r": 16,
    "g": 26,
    "b": 78
  },
  "hsl": {
    "h": 230.323,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.24739,
    "c": 0.09622,
    "h": 269.6
  },
  "luminance": 0.01399
}

Semantic roles & 50–950 ramp

primary

#101A4E

secondary

#887A32

accent

#CD3FE9

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #101A4E

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

Preview Lab → · Contrast checker → · Palette generator →