#1A3B7D#1A3B7D

#1A3B7D is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.9% C 0.119 H 262.3°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#1A3B7D
RGB	rgb(26, 59, 125)
HSL	hsl(220, 66%, 30%)
HSV	hsv(220, 79%, 49%)
CMYK	cmyk(79.2%, 52.8%, 0%, 51%)
CIE-LAB	lab(26.24, 13.54, -40.92)
CIE-LCH	lch(26.24, 43.10, 288.31°)
OKLab	oklab(36.87% -0.016 -0.1177)
OKLCH	oklch(36.87% 0.119 262.3)
XYZ	xyz(5.6903, 4.8276, 20.0300)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3B7D #7D5C1A

analogous

#1A6D7D #1A3B7D #2B1A7D

triadic

#1A3B7D #7D1A3B #3B7D1A

tetradic

#1A3B7D #7D1A6D #7D5C1A #1A7D2B

square

#1A3B7D #7D1A6D #7D5C1A #1A7D2B

split-complementary

#1A3B7D #7D2B1A #6D7D1A

monochromatic

#050C19 #0F234A #1A3B7D #2553B0 #3B6FD6

Accessibility & contrast

On white

10.68

#1A3B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1A3B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3B7D

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3B7D	#FFFFFF	#000000	##FFFFFF
##1A3B7D	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11437F

Deuteranopia (green-blind)

#003A7C

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a3b7d;
/* rgb */ color: rgb(26, 59, 125);
/* oklch */ color: oklch(36.9% 0.119 262.3);

Tailwind

colors: {
  custom: {
    50: '#6770a3',
    500: '#1a3b7d',
    950: '#000000',
  },
}

SCSS

$custom: #1a3b7d;
$custom-light: #6770a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3b7d",
  "rgb": {
    "r": 26,
    "g": 59,
    "b": 125
  },
  "hsl": {
    "h": 220,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36873,
    "c": 0.11883,
    "h": 262.3
  },
  "luminance": 0.04828
}

Semantic roles & 50–950 ramp

primary

#1A3B7D

secondary

#B18C42

accent

#B03FE9

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A3B7D

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

Preview Lab → · Contrast checker → · Palette generator →