#1A1589#1A1589

#1A1589 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.178 H 271.3°. Best body text is #FFFFFF at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#1A1589
RGB	rgb(26, 21, 137)
HSL	hsl(243, 73%, 31%)
HSV	hsv(243, 85%, 54%)
CMYK	cmyk(81%, 84.7%, 0%, 46.3%)
CIE-LAB	lab(18.19, 42.52, -61.66)
CIE-LCH	lch(18.19, 74.90, 304.59°)
OKLab	oklab(31.35% 0.0039 -0.1784)
OKLCH	oklch(31.35% 0.178 271.3)
XYZ	xyz(5.2080, 2.5615, 23.8820)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1589 #848915

analogous

#154A89 #1A1589 #541589

triadic

#1A1589 #891A15 #15891A

tetradic

#1A1589 #89154A #848915 #158954

square

#1A1589 #89154A #848915 #158954

split-complementary

#1A1589 #895415 #4A8915

monochromatic

#06051F #100D54 #1A1589 #241DBE #3F38E0

Accessibility & contrast

On white

13.89

#1A1589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1A1589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1589

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1589	#FFFFFF	#000000	##FFFFFF
##1A1589	1.00	13.89	1.51	13.89
#FFFFFF	13.89	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00328C

Deuteranopia (green-blind)

#002687

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1a1589;
/* rgb */ color: rgb(26, 21, 137);
/* oklch */ color: oklch(31.3% 0.178 271.3);

Tailwind

colors: {
  custom: {
    50: '#6d56ad',
    500: '#1a1589',
    950: '#000000',
  },
}

SCSS

$custom: #1a1589;
$custom-light: #6d56ad;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1589",
  "rgb": {
    "r": 26,
    "g": 21,
    "b": 137
  },
  "hsl": {
    "h": 242.586,
    "s": 73.418,
    "l": 30.98
  },
  "oklch": {
    "l": 0.31349,
    "c": 0.17847,
    "h": 271.3
  },
  "luminance": 0.02562
}

Semantic roles & 50–950 ramp

primary

#1A1589

secondary

#B8BD3D

accent

#F038E8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #1A1589

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

Preview Lab → · Contrast checker → · Palette generator →