#1A3779#1A3779

#1A3779 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.6% C 0.118 H 263.6°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#1A3779
RGB	rgb(26, 55, 121)
HSL	hsl(222, 65%, 29%)
HSV	hsv(222, 79%, 47%)
CMYK	cmyk(78.5%, 54.5%, 0%, 52.5%)
CIE-LAB	lab(24.74, 14.72, -40.82)
CIE-LCH	lch(24.74, 43.40, 289.83°)
OKLab	oklab(35.64% -0.0131 -0.1175)
OKLCH	oklch(35.64% 0.118 263.6)
XYZ	xyz(5.2422, 4.3319, 18.6453)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3779 #795C1A

analogous

#1A6779 #1A3779 #2D1A79

triadic

#1A3779 #791A37 #37791A

tetradic

#1A3779 #791A67 #795C1A #1A792D

square

#1A3779 #791A67 #795C1A #1A792D

split-complementary

#1A3779 #792D1A #67791A

monochromatic

#050B19 #0F2047 #1A3779 #254EAB #3968D4

Accessibility & contrast

On white

11.25

#1A3779 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1A3779 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3779

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3779	#FFFFFF	#000000	##FFFFFF
##1A3779	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#093F7B

Deuteranopia (green-blind)

#003778

Tritanopia (blue-blind)

#004752

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a3779;
/* rgb */ color: rgb(26, 55, 121);
/* oklch */ color: oklch(35.6% 0.118 263.6);

Tailwind

colors: {
  custom: {
    50: '#666da0',
    500: '#1a3779',
    950: '#000000',
  },
}

SCSS

$custom: #1a3779;
$custom-light: #666da0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3779",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 121
  },
  "hsl": {
    "h": 221.684,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.35637,
    "c": 0.11826,
    "h": 263.6
  },
  "luminance": 0.04332
}

Semantic roles & 50–950 ramp

primary

#1A3779

secondary

#AD8C41

accent

#B540E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #1A3779

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

Preview Lab → · Contrast checker → · Palette generator →