#1A3E79#1A3E79

#1A3E79 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.109 H 259.8°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E79
RGB	rgb(26, 62, 121)
HSL	hsl(217, 65%, 29%)
HSV	hsv(217, 79%, 47%)
CMYK	cmyk(78.5%, 48.8%, 0%, 52.5%)
CIE-LAB	lab(26.86, 9.79, -37.40)
CIE-LCH	lch(26.86, 38.66, 284.68°)
OKLab	oklab(37.26% -0.0193 -0.1073)
OKLCH	oklch(37.26% 0.109 259.8)
XYZ	xyz(5.5986, 5.0447, 18.7641)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E79 #79551A

analogous

#1A6E79 #1A3E79 #261A79

triadic

#1A3E79 #791A3E #3E791A

tetradic

#1A3E79 #791A6E #79551A #1A7926

square

#1A3E79 #791A6E #79551A #1A7926

split-complementary

#1A3E79 #79261A #6E791A

monochromatic

#050D19 #0F2447 #1A3E79 #2558AB #3974D4

Accessibility & contrast

On white

10.45

#1A3E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1A3E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E79

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E79	#FFFFFF	#000000	##FFFFFF
##1A3E79	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E447B

Deuteranopia (green-blind)

#053B78

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3e79;
/* rgb */ color: rgb(26, 62, 121);
/* oklch */ color: oklch(37.3% 0.109 259.8);

Tailwind

colors: {
  custom: {
    50: '#6672a0',
    500: '#1a3e79',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e79;
$custom-light: #6672a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e79",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 121
  },
  "hsl": {
    "h": 217.263,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37259,
    "c": 0.10903,
    "h": 259.8
  },
  "luminance": 0.05045
}

Semantic roles & 50–950 ramp

primary

#1A3E79

secondary

#AD8441

accent

#A840E8

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080F

muted

#7A7B7E

Preview Lab

Preview with #1A3E79

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

Preview Lab → · Contrast checker → · Palette generator →