#18127B#18127B

#18127B is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.1% C 0.164 H 272.0°. Best body text is #FFFFFF at 14.88:1 contrast (WCAG AA passes).

Color values

HEX	#18127B
RGB	rgb(24, 18, 123)
HSL	hsl(243, 74%, 28%)
HSV	hsv(243, 85%, 48%)
CMYK	cmyk(80.5%, 85.4%, 0%, 51.8%)
CIE-LAB	lab(15.78, 39.32, -56.80)
CIE-LCH	lch(15.78, 69.08, 304.69°)
OKLab	oklab(29.13% 0.0058 -0.1643)
OKLCH	oklch(29.13% 0.164 272)
XYZ	xyz(4.1669, 2.0564, 18.9124)
Luminance	0.0206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18127B #757B12

analogous

#12407B #18127B #4D127B

triadic

#18127B #7B1812 #127B18

tetradic

#18127B #7B1240 #757B12 #127B4D

square

#18127B #7B1240 #757B12 #127B4D

split-complementary

#18127B #7B4D12 #407B12

monochromatic

#05041B #0E0A46 #18127B #221AB0 #3228E0

Accessibility & contrast

On white

14.88

#18127B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#18127B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18127B

14.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18127B	#FFFFFF	#000000	##FFFFFF
##18127B	1.00	14.88	1.41	14.88
#FFFFFF	14.88	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C7E

Deuteranopia (green-blind)

#002279

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #18127b;
/* rgb */ color: rgb(24, 18, 123);
/* oklch */ color: oklch(29.1% 0.164 272.0);

Tailwind

colors: {
  custom: {
    50: '#6953a2',
    500: '#18127b',
    950: '#000000',
  },
}

SCSS

$custom: #18127b;
$custom-light: #6953a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18127b",
  "rgb": {
    "r": 24,
    "g": 18,
    "b": 123
  },
  "hsl": {
    "h": 243.429,
    "s": 74.468,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29131,
    "c": 0.16444,
    "h": 272
  },
  "luminance": 0.02057
}

Semantic roles & 50–950 ramp

primary

#18127B

secondary

#AAB138

accent

#F137E6

background

#F6F4FA

surface

#ECE7F4

border

#C7C3CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #18127B

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

Preview Lab → · Contrast checker → · Palette generator →