#10154C#10154C

#10154C is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.5% C 0.100 H 272.0°. Best body text is #FFFFFF at 17.02:1 contrast (WCAG AA passes).

Color values

HEX	#10154C
RGB	rgb(16, 21, 76)
HSL	hsl(235, 65%, 18%)
HSV	hsv(235, 79%, 30%)
CMYK	cmyk(78.9%, 72.4%, 0%, 70.2%)
CIE-LAB	lab(10.32, 19.48, -34.62)
CIE-LCH	lch(10.32, 39.72, 299.37°)
OKLab	oklab(23.48% 0.0034 -0.1)
OKLCH	oklch(23.48% 0.1 272)
XYZ	xyz(1.7859, 1.1681, 6.9674)
Luminance	0.0117 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#10154C #4C4710

analogous

#10334C #10154C #29104C

triadic

#10154C #4C1015 #154C10

tetradic

#10154C #4C1033 #4C4710 #104C29

square

#10154C #4C1033 #4C4710 #104C29

split-complementary

#10154C #4C2910 #334C10

monochromatic

#050719 #050719 #10154C #1B237F #2531B1

Accessibility & contrast

On white

17.02

#10154C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#10154C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #10154C

17.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##10154C	#FFFFFF	#000000	##FFFFFF
##10154C	1.00	17.02	1.23	17.02
#FFFFFF	17.02	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F4E

Deuteranopia (green-blind)

#00194B

Tritanopia (blue-blind)

#00242E

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #10154c;
/* rgb */ color: rgb(16, 21, 76);
/* oklch */ color: oklch(23.5% 0.100 272.0);

Tailwind

colors: {
  custom: {
    50: '#59527f',
    500: '#10154c',
    950: '#000000',
  },
}

SCSS

$custom: #10154c;
$custom-light: #59527f;
$custom-dark: #000000;

JSON

{
  "hex": "#10154c",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 76
  },
  "hsl": {
    "h": 235,
    "s": 65.217,
    "l": 18.039
  },
  "oklch": {
    "l": 0.23478,
    "c": 0.1001,
    "h": 272
  },
  "luminance": 0.01168
}

Semantic roles & 50–950 ramp

primary

#10154C

secondary

#867F32

accent

#DA40E8

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #10154C

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

Preview Lab → · Contrast checker → · Palette generator →