#1A3B82#1A3B82

#1A3B82 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.3% C 0.126 H 263.0°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#1A3B82
RGB	rgb(26, 59, 130)
HSL	hsl(221, 67%, 31%)
HSV	hsv(221, 80%, 51%)
CMYK	cmyk(80%, 54.6%, 0%, 49%)
CIE-LAB	lab(26.62, 15.59, -43.44)
CIE-LCH	lch(26.62, 46.16, 289.74°)
OKLab	oklab(37.28% -0.0154 -0.1252)
OKLCH	oklch(37.28% 0.126 263)
XYZ	xyz(6.0178, 4.9586, 21.7547)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3B82 #82611A

analogous

#1A6F82 #1A3B82 #2D1A82

triadic

#1A3B82 #821A3B #3B821A

tetradic

#1A3B82 #821A6F #82611A #1A822D

square

#1A3B82 #821A6F #82611A #1A822D

split-complementary

#1A3B82 #822D1A #6F821A

monochromatic

#060D1C #10244F #1A3B82 #2452B5 #3E6FD8

Accessibility & contrast

On white

10.54

#1A3B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#1A3B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3B82

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3B82	#FFFFFF	#000000	##FFFFFF
##1A3B82	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064485

Deuteranopia (green-blind)

#003A81

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3b82;
/* rgb */ color: rgb(26, 59, 130);
/* oklch */ color: oklch(37.3% 0.126 263.0);

Tailwind

colors: {
  custom: {
    50: '#6870a7',
    500: '#1a3b82',
    950: '#000000',
  },
}

SCSS

$custom: #1a3b82;
$custom-light: #6870a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3b82",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 130
  },
  "hsl": {
    "h": 220.962,
    "s": 66.667,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37282,
    "c": 0.12612,
    "h": 263
  },
  "luminance": 0.04959
}

Semantic roles & 50–950 ramp

primary

#1A3B82

secondary

#B69142

accent

#B33EEA

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3B82

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

Preview Lab → · Contrast checker → · Palette generator →