#10154A#10154A

#10154A is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.3% C 0.097 H 272.1°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#10154A
RGB	rgb(16, 21, 74)
HSL	hsl(235, 64%, 18%)
HSV	hsv(235, 78%, 29%)
CMYK	cmyk(78.4%, 71.6%, 0%, 71%)
CIE-LAB	lab(10.11, 18.65, -33.57)
CIE-LCH	lch(10.11, 38.40, 299.06°)
OKLab	oklab(23.26% 0.0036 -0.097)
OKLCH	oklch(23.26% 0.097 272.1)
XYZ	xyz(1.7175, 1.1407, 6.6069)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10154A #4A4510

analogous

#10324A #10154A #28104A

triadic

#10154A #4A1015 #154A10

tetradic

#10154A #4A1032 #4A4510 #104A28

square

#10154A #4A1032 #4A4510 #104A28

split-complementary

#10154A #4A2810 #324A10

monochromatic

#050719 #050719 #10154A #1B237C #2632AF

Accessibility & contrast

On white

17.10

#10154A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#10154A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10154A

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10154A	#FFFFFF	#000000	##FFFFFF
##10154A	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E4C

Deuteranopia (green-blind)

#001949

Tritanopia (blue-blind)

#00232D

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #10154a;
/* rgb */ color: rgb(16, 21, 74);
/* oklch */ color: oklch(23.3% 0.097 272.1);

Tailwind

colors: {
  custom: {
    50: '#58527d',
    500: '#10154a',
    950: '#000000',
  },
}

SCSS

$custom: #10154a;
$custom-light: #58527d;
$custom-dark: #000000;

JSON

{
  "hex": "#10154a",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 74
  },
  "hsl": {
    "h": 234.828,
    "s": 64.444,
    "l": 17.647
  },
  "oklch": {
    "l": 0.23263,
    "c": 0.09704,
    "h": 272.1
  },
  "luminance": 0.01141
}

Semantic roles & 50–950 ramp

primary

#10154A

secondary

#847D32

accent

#D940E7

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #10154A

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

Preview Lab → · Contrast checker → · Palette generator →