#1A1BB4#1A1BB4

#1A1BB4 is a dark, highly saturated blue. Relative luminance 0.043; OKLCH L 37.4% C 0.224 H 268.3°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#1A1BB4
RGB	rgb(26, 27, 180)
HSL	hsl(240, 75%, 40%)
HSV	hsv(240, 86%, 71%)
CMYK	cmyk(85.6%, 85%, 0%, 29.4%)
CIE-LAB	lab(24.63, 53.21, -77.27)
CIE-LCH	lch(24.63, 93.82, 304.55°)
OKLab	oklab(37.36% -0.0065 -0.2237)
OKLCH	oklch(37.36% 0.224 268.3)
XYZ	xyz(9.0533, 4.2976, 43.5235)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1BB4 #B4B31A

analogous

#1A68B4 #1A1BB4 #661AB4

triadic

#1A1BB4 #B41A1B #1BB41A

tetradic

#1A1BB4 #B41A68 #B4B31A #1AB466

square

#1A1BB4 #B41A68 #B4B31A #1AB466

split-complementary

#1A1BB4 #B4661A #68B41A

monochromatic

#0B0B49 #12137F #1A1BB4 #2B2CE0 #6061E8

Accessibility & contrast

On white

11.29

#1A1BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#1A1BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1BB4

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1BB4	#FFFFFF	#000000	##FFFFFF
##1A1BB4	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B8

Deuteranopia (green-blind)

#0032B2

Tritanopia (blue-blind)

#004E6B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a1bb4;
/* rgb */ color: rgb(26, 27, 180);
/* oklch */ color: oklch(37.4% 0.224 268.3);

Tailwind

colors: {
  custom: {
    50: '#785dcc',
    500: '#1a1bb4',
    950: '#000000',
  },
}

SCSS

$custom: #1a1bb4;
$custom-light: #785dcc;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1bb4",
  "rgb": {
    "r": 26,
    "g": 27,
    "b": 180
  },
  "hsl": {
    "h": 239.61,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.37359,
    "c": 0.22378,
    "h": 268.3
  },
  "luminance": 0.04299
}

Semantic roles & 50–950 ramp

primary

#1A1BB4

secondary

#CCCC5D

accent

#F036F1

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0414

muted

#7C7982

Preview Lab

Preview with #1A1BB4

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

Preview Lab → · Contrast checker → · Palette generator →