#10154B#10154B

#10154B is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.4% C 0.099 H 272.0°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#10154B
RGB	rgb(16, 21, 75)
HSL	hsl(235, 65%, 18%)
HSV	hsv(235, 79%, 29%)
CMYK	cmyk(78.7%, 72%, 0%, 70.6%)
CIE-LAB	lab(10.22, 19.06, -34.09)
CIE-LCH	lch(10.22, 39.06, 299.21°)
OKLab	oklab(23.37% 0.0035 -0.0985)
OKLCH	oklch(23.37% 0.099 272)
XYZ	xyz(1.7514, 1.1543, 6.7857)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10154B #4B4610

analogous

#10324B #10154B #28104B

triadic

#10154B #4B1015 #154B10

tetradic

#10154B #4B1032 #4B4610 #104B28

square

#10154B #4B1032 #4B4610 #104B28

split-complementary

#10154B #4B2810 #324B10

monochromatic

#050719 #050719 #10154B #1B237D #2631B0

Accessibility & contrast

On white

17.06

#10154B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#10154B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10154B

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10154B	#FFFFFF	#000000	##FFFFFF
##10154B	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4D

Deuteranopia (green-blind)

#00194A

Tritanopia (blue-blind)

#00232D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #10154b;
/* rgb */ color: rgb(16, 21, 75);
/* oklch */ color: oklch(23.4% 0.099 272.0);

Tailwind

colors: {
  custom: {
    50: '#58527e',
    500: '#10154b',
    950: '#000000',
  },
}

SCSS

$custom: #10154b;
$custom-light: #58527e;
$custom-dark: #000000;

JSON

{
  "hex": "#10154b",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 75
  },
  "hsl": {
    "h": 234.915,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.2337,
    "c": 0.09857,
    "h": 272
  },
  "luminance": 0.01154
}

Semantic roles & 50–950 ramp

primary

#10154B

secondary

#857E32

accent

#DA40E8

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #10154B

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

Preview Lab → · Contrast checker → · Palette generator →