#1B1A7B#1B1A7B

#1B1A7B is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.156 H 272.5°. Best body text is #FFFFFF at 14.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B1A7B
RGB	rgb(27, 26, 123)
HSL	hsl(241, 65%, 29%)
HSV	hsv(241, 79%, 48%)
CMYK	cmyk(78%, 78.9%, 0%, 51.8%)
CIE-LAB	lab(17.47, 35.21, -54.00)
CIE-LCH	lch(17.47, 64.46, 303.11°)
OKLab	oklab(30.36% 0.0068 -0.1563)
OKLCH	oklch(30.36% 0.156 272.5)
XYZ	xyz(4.3953, 2.4014, 18.9669)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B1A7B #7A7B1A

analogous

#1A4A7B #1B1A7B #4C1A7B

triadic

#1B1A7B #7B1B1A #1A7B1B

tetradic

#1B1A7B #7B1A4A #7A7B1A #1A7B4C

square

#1B1A7B #7B1A4A #7A7B1A #1A7B4C

split-complementary

#1B1A7B #7B4C1A #4A7B1A

monochromatic

#060519 #100F48 #1B1A7B #2625AE #3C3AD5

Accessibility & contrast

On white

14.19

#1B1A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1B1A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B1A7B

14.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B1A7B	#FFFFFF	#000000	##FFFFFF
##1B1A7B	1.00	14.19	1.48	14.19
#FFFFFF	14.19	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002679

Tritanopia (blue-blind)

#003749

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b1a7b;
/* rgb */ color: rgb(27, 26, 123);
/* oklch */ color: oklch(30.4% 0.156 272.5);

Tailwind

colors: {
  custom: {
    50: '#6958a2',
    500: '#1b1a7b',
    950: '#000000',
  },
}

SCSS

$custom: #1b1a7b;
$custom-light: #6958a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b1a7b",
  "rgb": {
    "r": 27,
    "g": 26,
    "b": 123
  },
  "hsl": {
    "h": 240.619,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.3036,
    "c": 0.15643,
    "h": 272.5
  },
  "luminance": 0.02402
}

Semantic roles & 50–950 ramp

primary

#1B1A7B

secondary

#AEAF42

accent

#E840E6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #1B1A7B

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

Preview Lab → · Contrast checker → · Palette generator →