#1A3979#1A3979

#1A3979 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.1% C 0.116 H 262.6°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#1A3979
RGB	rgb(26, 57, 121)
HSL	hsl(220, 65%, 29%)
HSV	hsv(220, 79%, 47%)
CMYK	cmyk(78.5%, 52.9%, 0%, 52.5%)
CIE-LAB	lab(25.34, 13.31, -39.85)
CIE-LCH	lch(25.34, 42.02, 288.46°)
OKLab	oklab(36.09% -0.0148 -0.1146)
OKLCH	oklch(36.09% 0.116 262.6)
XYZ	xyz(5.3391, 4.5257, 18.6776)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3979 #795A1A

analogous

#1A6979 #1A3979 #2B1A79

triadic

#1A3979 #791A39 #39791A

tetradic

#1A3979 #791A69 #795A1A #1A792B

square

#1A3979 #791A69 #795A1A #1A792B

split-complementary

#1A3979 #792B1A #69791A

monochromatic

#050C19 #0F2147 #1A3979 #2551AB #396CD4

Accessibility & contrast

On white

11.02

#1A3979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1A3979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3979

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3979	#FFFFFF	#000000	##FFFFFF
##1A3979	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11417B

Deuteranopia (green-blind)

#003878

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a3979;
/* rgb */ color: rgb(26, 57, 121);
/* oklch */ color: oklch(36.1% 0.116 262.6);

Tailwind

colors: {
  custom: {
    50: '#666ea0',
    500: '#1a3979',
    950: '#000000',
  },
}

SCSS

$custom: #1a3979;
$custom-light: #666ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3979",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 121
  },
  "hsl": {
    "h": 220.421,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36092,
    "c": 0.11559,
    "h": 262.6
  },
  "luminance": 0.04526
}

Semantic roles & 50–950 ramp

primary

#1A3979

secondary

#AD8A41

accent

#B140E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #1A3979

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

Preview Lab → · Contrast checker → · Palette generator →