#10104F#10104F

#10104F is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.9% C 0.111 H 273.3°. Best body text is #FFFFFF at 17.37:1 contrast (WCAG AA passes).

Color values

HEX	#10104F
RGB	rgb(16, 16, 79)
HSL	hsl(240, 66%, 19%)
HSV	hsv(240, 80%, 31%)
CMYK	cmyk(79.7%, 79.7%, 0%, 69%)
CIE-LAB	lab(9.36, 24.20, -38.26)
CIE-LCH	lch(9.36, 45.27, 302.31°)
OKLab	oklab(22.89% 0.0064 -0.1107)
OKLCH	oklch(22.89% 0.111 273.3)
XYZ	xyz(1.8098, 1.0451, 7.5020)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.40

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10104F #4F4F10

analogous

#102F4F #10104F #2F104F

triadic

#10104F #4F1010 #104F10

tetradic

#10104F #4F102F #4F4F10 #104F2F

square

#10104F #4F102F #4F4F10 #104F2F

split-complementary

#10104F #4F2F10 #2F4F10

monochromatic

#050519 #06061C #10104F #1A1A82 #2525B5

Accessibility & contrast

On white

17.37

#10104F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#10104F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10104F

17.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10104F	#FFFFFF	#000000	##FFFFFF
##10104F	1.00	17.37	1.21	17.37
#FFFFFF	17.37	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D51

Deuteranopia (green-blind)

#00174E

Tritanopia (blue-blind)

#00222E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #10104f;
/* rgb */ color: rgb(16, 16, 79);
/* oklch */ color: oklch(22.9% 0.111 273.3);

Tailwind

colors: {
  custom: {
    50: '#5a4f81',
    500: '#10104f',
    950: '#000000',
  },
}

SCSS

$custom: #10104f;
$custom-light: #5a4f81;
$custom-dark: #000000;

JSON

{
  "hex": "#10104f",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 79
  },
  "hsl": {
    "h": 240,
    "s": 66.316,
    "l": 18.627
  },
  "oklch": {
    "l": 0.22887,
    "c": 0.11089,
    "h": 273.3
  },
  "luminance": 0.01045
}

Semantic roles & 50–950 ramp

primary

#10104F

secondary

#898932

accent

#E93FE9

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020A

muted

#79787C

Preview Lab

Preview with #10104F

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

Preview Lab → · Contrast checker → · Palette generator →