#1A2583#1A2583

#1A2583 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.0% C 0.155 H 269.7°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#1A2583
RGB	rgb(26, 37, 131)
HSL	hsl(234, 67%, 31%)
HSV	hsv(234, 80%, 51%)
CMYK	cmyk(80.2%, 71.8%, 0%, 48.6%)
CIE-LAB	lab(20.75, 31.18, -53.65)
CIE-LCH	lch(20.75, 62.05, 300.16°)
OKLab	oklab(32.96% -0.0008 -0.1553)
OKLCH	oklch(32.96% 0.155 269.7)
XYZ	xyz(5.1829, 3.1809, 21.8091)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2583 #83781A

analogous

#1A5983 #1A2583 #431A83

triadic

#1A2583 #831A25 #25831A

tetradic

#1A2583 #831A59 #83781A #1A8343

square

#1A2583 #831A59 #83781A #1A8343

split-complementary

#1A2583 #83431A #59831A

monochromatic

#06081D #101750 #1A2583 #2433B6 #3F4FD9

Accessibility & contrast

On white

12.83

#1A2583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1A2583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2583

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2583	#FFFFFF	#000000	##FFFFFF
##1A2583	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003786

Deuteranopia (green-blind)

#002D81

Tritanopia (blue-blind)

#003F51

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1a2583;
/* rgb */ color: rgb(26, 37, 131);
/* oklch */ color: oklch(33.0% 0.155 269.7);

Tailwind

colors: {
  custom: {
    50: '#6a60a8',
    500: '#1a2583',
    950: '#000000',
  },
}

SCSS

$custom: #1a2583;
$custom-light: #6a60a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2583",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 131
  },
  "hsl": {
    "h": 233.714,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32957,
    "c": 0.15535,
    "h": 269.7
  },
  "luminance": 0.03181
}

Semantic roles & 50–950 ramp

primary

#1A2583

secondary

#B7AA42

accent

#D83EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080510

muted

#7A797F

Preview Lab

Preview with #1A2583

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

Preview Lab → · Contrast checker → · Palette generator →