#1A2183#1A2183

#1A2183 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.3% C 0.160 H 270.4°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#1A2183
RGB	rgb(26, 33, 131)
HSL	hsl(236, 67%, 31%)
HSV	hsv(236, 80%, 51%)
CMYK	cmyk(80.2%, 74.8%, 0%, 48.6%)
CIE-LAB	lab(19.82, 33.74, -55.18)
CIE-LCH	lch(19.82, 64.68, 301.44°)
OKLab	oklab(32.29% 0.0011 -0.1598)
OKLCH	oklch(32.29% 0.16 270.4)
XYZ	xyz(5.0652, 2.9455, 21.7699)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2183 #837C1A

analogous

#1A5583 #1A2183 #471A83

triadic

#1A2183 #831A21 #21831A

tetradic

#1A2183 #831A55 #837C1A #1A8347

square

#1A2183 #831A55 #837C1A #1A8347

split-complementary

#1A2183 #83471A #55831A

monochromatic

#06071D #101450 #1A2183 #242EB6 #3F49D9

Accessibility & contrast

On white

13.21

#1A2183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#1A2183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2183

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2183	#FFFFFF	#000000	##FFFFFF
##1A2183	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003586

Deuteranopia (green-blind)

#002B81

Tritanopia (blue-blind)

#003D50

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1a2183;
/* rgb */ color: rgb(26, 33, 131);
/* oklch */ color: oklch(32.3% 0.160 270.4);

Tailwind

colors: {
  custom: {
    50: '#6b5da8',
    500: '#1a2183',
    950: '#000000',
  },
}

SCSS

$custom: #1a2183;
$custom-light: #6b5da8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2183",
  "rgb": {
    "r": 26,
    "g": 33,
    "b": 131
  },
  "hsl": {
    "h": 236,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32288,
    "c": 0.15981,
    "h": 270.4
  },
  "luminance": 0.02946
}

Semantic roles & 50–950 ramp

primary

#1A2183

secondary

#B7AF42

accent

#DE3EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#080410

muted

#7A797F

Preview Lab

Preview with #1A2183

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

Preview Lab → · Contrast checker → · Palette generator →