#1A3479#1A3479

#1A3479 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.0% C 0.122 H 265.0°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#1A3479
RGB	rgb(26, 52, 121)
HSL	hsl(224, 65%, 29%)
HSV	hsv(224, 79%, 47%)
CMYK	cmyk(78.5%, 57%, 0%, 52.5%)
CIE-LAB	lab(23.85, 16.85, -42.26)
CIE-LCH	lch(23.85, 45.49, 291.74°)
OKLab	oklab(34.97% -0.0106 -0.1218)
OKLCH	oklch(34.97% 0.122 265)
XYZ	xyz(5.1040, 4.0555, 18.5992)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3479 #795F1A

analogous

#1A6479 #1A3479 #301A79

triadic

#1A3479 #791A34 #34791A

tetradic

#1A3479 #791A64 #795F1A #1A7930

square

#1A3479 #791A64 #795F1A #1A7930

split-complementary

#1A3479 #79301A #64791A

monochromatic

#050B19 #0F1E47 #1A3479 #254AAB #3964D4

Accessibility & contrast

On white

11.59

#1A3479 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#1A3479 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3479

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3479	#FFFFFF	#000000	##FFFFFF
##1A3479	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7B

Deuteranopia (green-blind)

#003578

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1a3479;
/* rgb */ color: rgb(26, 52, 121);
/* oklch */ color: oklch(35.0% 0.122 265.0);

Tailwind

colors: {
  custom: {
    50: '#666ba0',
    500: '#1a3479',
    950: '#000000',
  },
}

SCSS

$custom: #1a3479;
$custom-light: #666ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3479",
  "rgb": {
    "r": 26,
    "g": 52,
    "b": 121
  },
  "hsl": {
    "h": 223.579,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34966,
    "c": 0.12227,
    "h": 265
  },
  "luminance": 0.04056
}

Semantic roles & 50–950 ramp

primary

#1A3479

secondary

#AD9041

accent

#BA40E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #1A3479

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

Preview Lab → · Contrast checker → · Palette generator →