#10104E#10104E

#10104E is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.8% C 0.109 H 273.5°. Best body text is #FFFFFF at 17.41:1 contrast (WCAG AA passes).

Color values

HEX	#10104E
RGB	rgb(16, 16, 78)
HSL	hsl(240, 66%, 18%)
HSV	hsv(240, 79%, 31%)
CMYK	cmyk(79.5%, 79.5%, 0%, 69.4%)
CIE-LAB	lab(9.24, 23.81, -37.77)
CIE-LCH	lch(9.24, 44.65, 302.23°)
OKLab	oklab(22.77% 0.0066 -0.1092)
OKLCH	oklch(22.77% 0.109 273.5)
XYZ	xyz(1.7737, 1.0306, 7.3117)
Luminance	0.0103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.23

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10104E #4E4E10

analogous

#102F4E #10104E #2F104E

triadic

#10104E #4E1010 #104E10

tetradic

#10104E #4E102F #4E4E10 #104E2F

square

#10104E #4E102F #4E4E10 #104E2F

split-complementary

#10104E #4E2F10 #2F4E10

monochromatic

#050519 #06061B #10104E #1A1A81 #2525B4

Accessibility & contrast

On white

17.41

#10104E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#10104E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10104E

17.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10104E	#FFFFFF	#000000	##FFFFFF
##10104E	1.00	17.41	1.21	17.41
#FFFFFF	17.41	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D50

Deuteranopia (green-blind)

#00174D

Tritanopia (blue-blind)

#00222D

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #10104e;
/* rgb */ color: rgb(16, 16, 78);
/* oklch */ color: oklch(22.8% 0.109 273.5);

Tailwind

colors: {
  custom: {
    50: '#5a4e80',
    500: '#10104e',
    950: '#000000',
  },
}

SCSS

$custom: #10104e;
$custom-light: #5a4e80;
$custom-dark: #000000;

JSON

{
  "hex": "#10104e",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 78
  },
  "hsl": {
    "h": 240,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.22769,
    "c": 0.10945,
    "h": 273.5
  },
  "luminance": 0.01031
}

Semantic roles & 50–950 ramp

primary

#10104E

secondary

#888832

accent

#E93FE9

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #10104E

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

Preview Lab → · Contrast checker → · Palette generator →