#12153A#12153A

#12153A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 21.8% C 0.071 H 275.4°. Best body text is #FFFFFF at 17.59:1 contrast (WCAG AA passes).

Color values

HEX	#12153A
RGB	rgb(18, 21, 58)
HSL	hsl(236, 53%, 15%)
HSV	hsv(236, 69%, 23%)
CMYK	cmyk(69%, 63.8%, 0%, 77.3%)
CIE-LAB	lab(8.74, 12.35, -24.50)
CIE-LCH	lch(8.74, 27.43, 296.75°)
OKLab	oklab(21.81% 0.0066 -0.0703)
OKLCH	oklch(21.81% 0.071 275.4)
XYZ	xyz(1.2811, 0.9703, 4.1219)
Luminance	0.0097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12153A #3A3712

analogous

#12293A #12153A #23123A

triadic

#12153A #3A1215 #153A12

tetradic

#12153A #3A1229 #3A3712 #123A23

square

#12153A #3A1229 #3A3712 #123A23

split-complementary

#12153A #3A2312 #293A12

monochromatic

#070817 #070817 #12153A #202669 #2F3797

Accessibility & contrast

On white

17.59

#12153A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#12153A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12153A

17.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12153A	#FFFFFF	#000000	##FFFFFF
##12153A	1.00	17.59	1.19	17.59
#FFFFFF	17.59	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3B

Deuteranopia (green-blind)

#001739

Tritanopia (blue-blind)

#001E25

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #12153a;
/* rgb */ color: rgb(18, 21, 58);
/* oklch */ color: oklch(21.8% 0.071 275.4);

Tailwind

colors: {
  custom: {
    50: '#555270',
    500: '#12153a',
    950: '#000000',
  },
}

SCSS

$custom: #12153a;
$custom-light: #555270;
$custom-dark: #000000;

JSON

{
  "hex": "#12153a",
  "rgb": {
    "r": 18,
    "g": 21,
    "b": 58
  },
  "hsl": {
    "h": 235.5,
    "s": 52.632,
    "l": 14.902
  },
  "oklch": {
    "l": 0.21814,
    "c": 0.07057,
    "h": 275.4
  },
  "luminance": 0.0097
}

Semantic roles & 50–950 ramp

primary

#12153A

secondary

#736E35

accent

#D14CDC

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #12153A

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

Preview Lab → · Contrast checker → · Palette generator →