#1A3370#1A3370

#1A3370 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.0% C 0.110 H 264.5°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#1A3370
RGB	rgb(26, 51, 112)
HSL	hsl(223, 62%, 27%)
HSV	hsv(223, 77%, 44%)
CMYK	cmyk(76.8%, 54.5%, 0%, 56.1%)
CIE-LAB	lab(22.85, 13.87, -38.14)
CIE-LCH	lch(22.85, 40.59, 289.99°)
OKLab	oklab(33.98% -0.0106 -0.1097)
OKLCH	oklch(33.98% 0.11 264.5)
XYZ	xyz(4.5334, 3.7566, 15.8123)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3370 #70571A

analogous

#1A5E70 #1A3370 #2C1A70

triadic

#1A3370 #701A33 #33701A

tetradic

#1A3370 #701A5E #70571A #1A702C

square

#1A3370 #701A5E #70571A #1A702C

split-complementary

#1A3370 #702C1A #5E701A

monochromatic

#060B19 #0E1C3E #1A3370 #264AA2 #3462D0

Accessibility & contrast

On white

11.99

#1A3370 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1A3370 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3370

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3370	#FFFFFF	#000000	##FFFFFF
##1A3370	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B3B72

Deuteranopia (green-blind)

#00336F

Tritanopia (blue-blind)

#00424C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1a3370;
/* rgb */ color: rgb(26, 51, 112);
/* oklch */ color: oklch(34.0% 0.110 264.5);

Tailwind

colors: {
  custom: {
    50: '#646a9a',
    500: '#1a3370',
    950: '#000000',
  },
}

SCSS

$custom: #1a3370;
$custom-light: #646a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3370",
  "rgb": {
    "r": 26,
    "g": 51,
    "b": 112
  },
  "hsl": {
    "h": 222.558,
    "s": 62.319,
    "l": 27.059
  },
  "oklch": {
    "l": 0.33982,
    "c": 0.11024,
    "h": 264.5
  },
  "luminance": 0.03757
}

Semantic roles & 50–950 ramp

primary

#1A3370

secondary

#A58841

accent

#B642E5

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1A3370

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

Preview Lab → · Contrast checker → · Palette generator →