#1A1B7E#1A1B7E

#1A1B7E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.160 H 271.6°. Best body text is #FFFFFF at 13.98:1 contrast (WCAG AA passes).

Color values

HEX	#1A1B7E
RGB	rgb(26, 27, 126)
HSL	hsl(239, 66%, 30%)
HSV	hsv(239, 79%, 49%)
CMYK	cmyk(79.4%, 78.6%, 0%, 50.6%)
CIE-LAB	lab(17.96, 35.60, -55.09)
CIE-LCH	lch(17.96, 65.59, 302.87°)
OKLab	oklab(30.8% 0.0045 -0.1595)
OKLCH	oklch(30.8% 0.16 271.6)
XYZ	xyz(4.5826, 2.5093, 19.9775)
Luminance	0.0251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1B7E #7E7D1A

analogous

#1A4D7E #1A1B7E #4B1A7E

triadic

#1A1B7E #7E1A1B #1B7E1A

tetradic

#1A1B7E #7E1A4D #7E7D1A #1A7E4B

square

#1A1B7E #7E1A4D #7E7D1A #1A7E4B

split-complementary

#1A1B7E #7E4B1A #4D7E1A

monochromatic

#050519 #10104B #1A1B7E #2426B1 #3C3DD7

Accessibility & contrast

On white

13.98

#1A1B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#1A1B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1B7E

13.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1B7E	#FFFFFF	#000000	##FFFFFF
##1A1B7E	1.00	13.98	1.50	13.98
#FFFFFF	13.98	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	13.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00277C

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1a1b7e;
/* rgb */ color: rgb(26, 27, 126);
/* oklch */ color: oklch(30.8% 0.160 271.6);

Tailwind

colors: {
  custom: {
    50: '#6a59a5',
    500: '#1a1b7e',
    950: '#000000',
  },
}

SCSS

$custom: #1a1b7e;
$custom-light: #6a59a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1b7e",
  "rgb": {
    "r": 26,
    "g": 27,
    "b": 126
  },
  "hsl": {
    "h": 239.4,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.30796,
    "c": 0.15956,
    "h": 271.6
  },
  "luminance": 0.0251
}

Semantic roles & 50–950 ramp

primary

#1A1B7E

secondary

#B2B142

accent

#E73FE9

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1A1B7E

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

Preview Lab → · Contrast checker → · Palette generator →